Java 弹簧：can'；t访问控制器404未找到错误_Java_Spring_Spring Boot_Spring Mvc

Java 弹簧：can'；t访问控制器404未找到错误

java spring spring-boot spring-mvc

Java 弹簧：can'；t访问控制器404未找到错误,java,spring,spring-boot,spring-mvc,Java,Spring,Spring Boot,Spring Mvc,我正在尝试访问http://localhost:8088/test_war_exploded/home/hello但获取404错误。我不明白为什么目录结构： root src main java test config DbConfig.java MyAppInitializer.java WebConfig.java Home

我正在尝试访问

http://localhost:8088/test_war_exploded/home/hello

但获取

错误。我不明白为什么

目录结构：

root
  src
    main
      java
         test
           config
              DbConfig.java
              MyAppInitializer.java
              WebConfig.java
          HomeController.java

WebConfig.java：


@Configuration
@ComponentScan("test")
@EnableWebMvc
@EnableTransactionManagement
@EnableGlobalMethodSecurity(prePostEnabled = true)
@EnableJpaRepositories(basePackages = "test",
        entityManagerFactoryRef = "entityManagerFactory",
        transactionManagerRef = "transactionManager")
 public class WebConfig extends WebMvcConfigurerAdapter {
    @Override
    public void configureDefaultServletHandling(
                DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }

    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/").setViewName("index");
    }

    @Bean
    public ViewResolver viewResolver() {
        InternalResourceViewResolver bean = new InternalResourceViewResolver();

        bean.setViewClass(JstlView.class);
        bean.setPrefix("/WEB-INF/view/");
bean.setSuffix(".html");


        return bean;
    }
}

public class MyAppInitializer extends
                AbstractAnnotationConfigDispatcherServletInitializer {
    @Override
    public void onStartup(final ServletContext sc) throws ServletException {
        System.out.println("onStartup!");

        AnnotationConfigWebApplicationContext root =
                new AnnotationConfigWebApplicationContext();

        root.register(WebConfig.class);
        root.setServletContext(sc);

        root.scan("test");
        //sc.addListener(new ContextLoaderListener(root));

        ServletRegistration.Dynamic appServlet =
                sc.addServlet("dispatcher", new DispatcherServlet(new GenericWebApplicationContext()));
        appServlet.setLoadOnStartup(1);
        appServlet.addMapping("/");
    }

        @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[] {SecurityConfig.class};
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[]{WebConfig.class};
    }

    @Override
    protected String[] getServletMappings() {
        return new String[]{"/"};
    }
}

@RestController
@RequestMapping("/home")
public class HomeController {

    @GetMapping(value = "/hello")
    public String hello() {
        return "Hello";
    }
}

@Configuration
@EnableGlobalMethodSecurity(prePostEnabled=true)
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter  {
    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
        httpSecurity.authorizeRequests().antMatchers("/").permitAll();
    }

    @Bean
    BCryptPasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }
}

public class SecurityWebApplicationInitializer extends
                    AbstractSecurityWebApplicationInitializer {
    public SecurityWebApplicationInitializer() {
        super(SecurityConfig.class, WebConfig.class);
    }
}

public class Main {
    public static void main(String[] args) {

    }
}

public class MyAppInitializer extends
                AbstractAnnotationConfigDispatcherServletInitializer {
    @Override
    public void onStartup(final ServletContext sc) throws ServletException {
        System.out.println("onStartup!");

        AnnotationConfigWebApplicationContext root =
                new AnnotationConfigWebApplicationContext();

        root.register(WebConfig.class);
        root.setServletContext(sc);

        root.scan("test");
        //sc.addListener(new ContextLoaderListener(root));

        ServletRegistration.Dynamic appServlet =
                sc.addServlet("dispatcher", new DispatcherServlet(new GenericWebApplicationContext()));
        appServlet.setLoadOnStartup(1);
        appServlet.addMapping("/");
    }

        @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[] {SecurityConfig.class};
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[]{WebConfig.class};
    }

    @Override
    protected String[] getServletMappings() {
        return new String[]{"/"};
    }
}

@Configuration
@ComponentScan("test")
@EnableWebMvc
@EnableTransactionManagement
@EnableGlobalMethodSecurity(prePostEnabled = true)
@EnableJpaRepositories(basePackages = "test",
        entityManagerFactoryRef = "entityManagerFactory", transactionManagerRef = "transactionManager")
 public class WebConfig extends WebMvcConfigurerAdapter {
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**");
    }


    @Override
    public void configureDefaultServletHandling(
                DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }
}

@RestController
public class HomeController {
    @GetMapping("/")
    public String getHome()  {
        return "home";
    }
}

@RestController
public class TestController {
    @RequestMapping("/test")
    public String test()  {
        return "test";
    }
}

MyAppInitializer.java：


@Configuration
@ComponentScan("test")
@EnableWebMvc
@EnableTransactionManagement
@EnableGlobalMethodSecurity(prePostEnabled = true)
@EnableJpaRepositories(basePackages = "test",
        entityManagerFactoryRef = "entityManagerFactory",
        transactionManagerRef = "transactionManager")
 public class WebConfig extends WebMvcConfigurerAdapter {
    @Override
    public void configureDefaultServletHandling(
                DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }

    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/").setViewName("index");
    }

    @Bean
    public ViewResolver viewResolver() {
        InternalResourceViewResolver bean = new InternalResourceViewResolver();

        bean.setViewClass(JstlView.class);
        bean.setPrefix("/WEB-INF/view/");
bean.setSuffix(".html");


        return bean;
    }
}

public class MyAppInitializer extends
                AbstractAnnotationConfigDispatcherServletInitializer {
    @Override
    public void onStartup(final ServletContext sc) throws ServletException {
        System.out.println("onStartup!");

        AnnotationConfigWebApplicationContext root =
                new AnnotationConfigWebApplicationContext();

        root.register(WebConfig.class);
        root.setServletContext(sc);

        root.scan("test");
        //sc.addListener(new ContextLoaderListener(root));

        ServletRegistration.Dynamic appServlet =
                sc.addServlet("dispatcher", new DispatcherServlet(new GenericWebApplicationContext()));
        appServlet.setLoadOnStartup(1);
        appServlet.addMapping("/");
    }

        @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[] {SecurityConfig.class};
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[]{WebConfig.class};
    }

    @Override
    protected String[] getServletMappings() {
        return new String[]{"/"};
    }
}

@RestController
@RequestMapping("/home")
public class HomeController {

    @GetMapping(value = "/hello")
    public String hello() {
        return "Hello";
    }
}

@Configuration
@EnableGlobalMethodSecurity(prePostEnabled=true)
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter  {
    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
        httpSecurity.authorizeRequests().antMatchers("/").permitAll();
    }

    @Bean
    BCryptPasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }
}

public class SecurityWebApplicationInitializer extends
                    AbstractSecurityWebApplicationInitializer {
    public SecurityWebApplicationInitializer() {
        super(SecurityConfig.class, WebConfig.class);
    }
}

public class Main {
    public static void main(String[] args) {

    }
}

public class MyAppInitializer extends
                AbstractAnnotationConfigDispatcherServletInitializer {
    @Override
    public void onStartup(final ServletContext sc) throws ServletException {
        System.out.println("onStartup!");

        AnnotationConfigWebApplicationContext root =
                new AnnotationConfigWebApplicationContext();

        root.register(WebConfig.class);
        root.setServletContext(sc);

        root.scan("test");
        //sc.addListener(new ContextLoaderListener(root));

        ServletRegistration.Dynamic appServlet =
                sc.addServlet("dispatcher", new DispatcherServlet(new GenericWebApplicationContext()));
        appServlet.setLoadOnStartup(1);
        appServlet.addMapping("/");
    }

        @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[] {SecurityConfig.class};
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[]{WebConfig.class};
    }

    @Override
    protected String[] getServletMappings() {
        return new String[]{"/"};
    }
}

@Configuration
@ComponentScan("test")
@EnableWebMvc
@EnableTransactionManagement
@EnableGlobalMethodSecurity(prePostEnabled = true)
@EnableJpaRepositories(basePackages = "test",
        entityManagerFactoryRef = "entityManagerFactory", transactionManagerRef = "transactionManager")
 public class WebConfig extends WebMvcConfigurerAdapter {
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**");
    }


    @Override
    public void configureDefaultServletHandling(
                DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }
}

@RestController
public class HomeController {
    @GetMapping("/")
    public String getHome()  {
        return "home";
    }
}

@RestController
public class TestController {
    @RequestMapping("/test")
    public String test()  {
        return "test";
    }
}

部署应用程序时，服务器/IDE日志中没有错误。在部署期间，

onStartup

在控制台中打印，这意味着执行

MyAppInitializer

中的代码。

HomeController为/home提供映射。为了访问提到的端点，您可以将第一部分添加到RequestMapping注释中：@RequestMapping（“test_war_/home”）

您尝试通过端口8088访问。如果未在application.properties中设置，则默认端口为8080。否则。

未定义和初始化HomeController bean

@Component
@RestController
@RequestMapping("/home")
public class HomeController {

    @GetMapping(value = "/hello")
    public String hello() {
        return "Hello";
    }
}

我想出来了。问题是我没有初始化器类。我添加了两个类：

SecurityConfig

和

SecurityWebApplicationInitializer

：

SecurityConfig.java：


@Configuration
@ComponentScan("test")
@EnableWebMvc
@EnableTransactionManagement
@EnableGlobalMethodSecurity(prePostEnabled = true)
@EnableJpaRepositories(basePackages = "test",
        entityManagerFactoryRef = "entityManagerFactory",
        transactionManagerRef = "transactionManager")
 public class WebConfig extends WebMvcConfigurerAdapter {
    @Override
    public void configureDefaultServletHandling(
                DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }

    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/").setViewName("index");
    }

    @Bean
    public ViewResolver viewResolver() {
        InternalResourceViewResolver bean = new InternalResourceViewResolver();

        bean.setViewClass(JstlView.class);
        bean.setPrefix("/WEB-INF/view/");
bean.setSuffix(".html");


        return bean;
    }
}

public class MyAppInitializer extends
                AbstractAnnotationConfigDispatcherServletInitializer {
    @Override
    public void onStartup(final ServletContext sc) throws ServletException {
        System.out.println("onStartup!");

        AnnotationConfigWebApplicationContext root =
                new AnnotationConfigWebApplicationContext();

        root.register(WebConfig.class);
        root.setServletContext(sc);

        root.scan("test");
        //sc.addListener(new ContextLoaderListener(root));

        ServletRegistration.Dynamic appServlet =
                sc.addServlet("dispatcher", new DispatcherServlet(new GenericWebApplicationContext()));
        appServlet.setLoadOnStartup(1);
        appServlet.addMapping("/");
    }

        @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[] {SecurityConfig.class};
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[]{WebConfig.class};
    }

    @Override
    protected String[] getServletMappings() {
        return new String[]{"/"};
    }
}

@RestController
@RequestMapping("/home")
public class HomeController {

    @GetMapping(value = "/hello")
    public String hello() {
        return "Hello";
    }
}

@Configuration
@EnableGlobalMethodSecurity(prePostEnabled=true)
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter  {
    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
        httpSecurity.authorizeRequests().antMatchers("/").permitAll();
    }

    @Bean
    BCryptPasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }
}

public class SecurityWebApplicationInitializer extends
                    AbstractSecurityWebApplicationInitializer {
    public SecurityWebApplicationInitializer() {
        super(SecurityConfig.class, WebConfig.class);
    }
}

public class Main {
    public static void main(String[] args) {

    }
}

public class MyAppInitializer extends
                AbstractAnnotationConfigDispatcherServletInitializer {
    @Override
    public void onStartup(final ServletContext sc) throws ServletException {
        System.out.println("onStartup!");

        AnnotationConfigWebApplicationContext root =
                new AnnotationConfigWebApplicationContext();

        root.register(WebConfig.class);
        root.setServletContext(sc);

        root.scan("test");
        //sc.addListener(new ContextLoaderListener(root));

        ServletRegistration.Dynamic appServlet =
                sc.addServlet("dispatcher", new DispatcherServlet(new GenericWebApplicationContext()));
        appServlet.setLoadOnStartup(1);
        appServlet.addMapping("/");
    }

        @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[] {SecurityConfig.class};
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[]{WebConfig.class};
    }

    @Override
    protected String[] getServletMappings() {
        return new String[]{"/"};
    }
}

@Configuration
@ComponentScan("test")
@EnableWebMvc
@EnableTransactionManagement
@EnableGlobalMethodSecurity(prePostEnabled = true)
@EnableJpaRepositories(basePackages = "test",
        entityManagerFactoryRef = "entityManagerFactory", transactionManagerRef = "transactionManager")
 public class WebConfig extends WebMvcConfigurerAdapter {
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**");
    }


    @Override
    public void configureDefaultServletHandling(
                DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }
}

@RestController
public class HomeController {
    @GetMapping("/")
    public String getHome()  {
        return "home";
    }
}

@RestController
public class TestController {
    @RequestMapping("/test")
    public String test()  {
        return "test";
    }
}

SecurityWebApplicationInitializer.java：


@Configuration
@ComponentScan("test")
@EnableWebMvc
@EnableTransactionManagement
@EnableGlobalMethodSecurity(prePostEnabled = true)
@EnableJpaRepositories(basePackages = "test",
        entityManagerFactoryRef = "entityManagerFactory",
        transactionManagerRef = "transactionManager")
 public class WebConfig extends WebMvcConfigurerAdapter {
    @Override
    public void configureDefaultServletHandling(
                DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }

    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/").setViewName("index");
    }

    @Bean
    public ViewResolver viewResolver() {
        InternalResourceViewResolver bean = new InternalResourceViewResolver();

        bean.setViewClass(JstlView.class);
        bean.setPrefix("/WEB-INF/view/");
bean.setSuffix(".html");


        return bean;
    }
}

public class MyAppInitializer extends
                AbstractAnnotationConfigDispatcherServletInitializer {
    @Override
    public void onStartup(final ServletContext sc) throws ServletException {
        System.out.println("onStartup!");

        AnnotationConfigWebApplicationContext root =
                new AnnotationConfigWebApplicationContext();

        root.register(WebConfig.class);
        root.setServletContext(sc);

        root.scan("test");
        //sc.addListener(new ContextLoaderListener(root));

        ServletRegistration.Dynamic appServlet =
                sc.addServlet("dispatcher", new DispatcherServlet(new GenericWebApplicationContext()));
        appServlet.setLoadOnStartup(1);
        appServlet.addMapping("/");
    }

        @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[] {SecurityConfig.class};
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[]{WebConfig.class};
    }

    @Override
    protected String[] getServletMappings() {
        return new String[]{"/"};
    }
}

@RestController
@RequestMapping("/home")
public class HomeController {

    @GetMapping(value = "/hello")
    public String hello() {
        return "Hello";
    }
}

@Configuration
@EnableGlobalMethodSecurity(prePostEnabled=true)
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter  {
    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
        httpSecurity.authorizeRequests().antMatchers("/").permitAll();
    }

    @Bean
    BCryptPasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }
}

public class SecurityWebApplicationInitializer extends
                    AbstractSecurityWebApplicationInitializer {
    public SecurityWebApplicationInitializer() {
        super(SecurityConfig.class, WebConfig.class);
    }
}

public class Main {
    public static void main(String[] args) {

    }
}

public class MyAppInitializer extends
                AbstractAnnotationConfigDispatcherServletInitializer {
    @Override
    public void onStartup(final ServletContext sc) throws ServletException {
        System.out.println("onStartup!");

        AnnotationConfigWebApplicationContext root =
                new AnnotationConfigWebApplicationContext();

        root.register(WebConfig.class);
        root.setServletContext(sc);

        root.scan("test");
        //sc.addListener(new ContextLoaderListener(root));

        ServletRegistration.Dynamic appServlet =
                sc.addServlet("dispatcher", new DispatcherServlet(new GenericWebApplicationContext()));
        appServlet.setLoadOnStartup(1);
        appServlet.addMapping("/");
    }

        @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[] {SecurityConfig.class};
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[]{WebConfig.class};
    }

    @Override
    protected String[] getServletMappings() {
        return new String[]{"/"};
    }
}

@Configuration
@ComponentScan("test")
@EnableWebMvc
@EnableTransactionManagement
@EnableGlobalMethodSecurity(prePostEnabled = true)
@EnableJpaRepositories(basePackages = "test",
        entityManagerFactoryRef = "entityManagerFactory", transactionManagerRef = "transactionManager")
 public class WebConfig extends WebMvcConfigurerAdapter {
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**");
    }


    @Override
    public void configureDefaultServletHandling(
                DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }
}

@RestController
public class HomeController {
    @GetMapping("/")
    public String getHome()  {
        return "home";
    }
}

@RestController
public class TestController {
    @RequestMapping("/test")
    public String test()  {
        return "test";
    }
}

这就是我的项目现在的样子：

Main.java

仅用于

maven shade插件

，没关系，它只包含空的

Main

方法：

Main.java：


@Configuration
@ComponentScan("test")
@EnableWebMvc
@EnableTransactionManagement
@EnableGlobalMethodSecurity(prePostEnabled = true)
@EnableJpaRepositories(basePackages = "test",
        entityManagerFactoryRef = "entityManagerFactory",
        transactionManagerRef = "transactionManager")
 public class WebConfig extends WebMvcConfigurerAdapter {
    @Override
    public void configureDefaultServletHandling(
                DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }

    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/").setViewName("index");
    }

    @Bean
    public ViewResolver viewResolver() {
        InternalResourceViewResolver bean = new InternalResourceViewResolver();

        bean.setViewClass(JstlView.class);
        bean.setPrefix("/WEB-INF/view/");
bean.setSuffix(".html");


        return bean;
    }
}

public class MyAppInitializer extends
                AbstractAnnotationConfigDispatcherServletInitializer {
    @Override
    public void onStartup(final ServletContext sc) throws ServletException {
        System.out.println("onStartup!");

        AnnotationConfigWebApplicationContext root =
                new AnnotationConfigWebApplicationContext();

        root.register(WebConfig.class);
        root.setServletContext(sc);

        root.scan("test");
        //sc.addListener(new ContextLoaderListener(root));

        ServletRegistration.Dynamic appServlet =
                sc.addServlet("dispatcher", new DispatcherServlet(new GenericWebApplicationContext()));
        appServlet.setLoadOnStartup(1);
        appServlet.addMapping("/");
    }

        @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[] {SecurityConfig.class};
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[]{WebConfig.class};
    }

    @Override
    protected String[] getServletMappings() {
        return new String[]{"/"};
    }
}

@RestController
@RequestMapping("/home")
public class HomeController {

    @GetMapping(value = "/hello")
    public String hello() {
        return "Hello";
    }
}

@Configuration
@EnableGlobalMethodSecurity(prePostEnabled=true)
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter  {
    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
        httpSecurity.authorizeRequests().antMatchers("/").permitAll();
    }

    @Bean
    BCryptPasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }
}

public class SecurityWebApplicationInitializer extends
                    AbstractSecurityWebApplicationInitializer {
    public SecurityWebApplicationInitializer() {
        super(SecurityConfig.class, WebConfig.class);
    }
}

public class Main {
    public static void main(String[] args) {

    }
}

public class MyAppInitializer extends
                AbstractAnnotationConfigDispatcherServletInitializer {
    @Override
    public void onStartup(final ServletContext sc) throws ServletException {
        System.out.println("onStartup!");

        AnnotationConfigWebApplicationContext root =
                new AnnotationConfigWebApplicationContext();

        root.register(WebConfig.class);
        root.setServletContext(sc);

        root.scan("test");
        //sc.addListener(new ContextLoaderListener(root));

        ServletRegistration.Dynamic appServlet =
                sc.addServlet("dispatcher", new DispatcherServlet(new GenericWebApplicationContext()));
        appServlet.setLoadOnStartup(1);
        appServlet.addMapping("/");
    }

        @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[] {SecurityConfig.class};
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[]{WebConfig.class};
    }

    @Override
    protected String[] getServletMappings() {
        return new String[]{"/"};
    }
}

@Configuration
@ComponentScan("test")
@EnableWebMvc
@EnableTransactionManagement
@EnableGlobalMethodSecurity(prePostEnabled = true)
@EnableJpaRepositories(basePackages = "test",
        entityManagerFactoryRef = "entityManagerFactory", transactionManagerRef = "transactionManager")
 public class WebConfig extends WebMvcConfigurerAdapter {
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**");
    }


    @Override
    public void configureDefaultServletHandling(
                DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }
}

@RestController
public class HomeController {
    @GetMapping("/")
    public String getHome()  {
        return "home";
    }
}

@RestController
public class TestController {
    @RequestMapping("/test")
    public String test()  {
        return "test";
    }
}

我的其他课程（更新）。为了简单起见，我删除了数据库配置类。如果您不需要数据库，您可以从这个答案复制粘贴类，它应该可以正常工作：

MyAppInitializer.java：


@Configuration
@ComponentScan("test")
@EnableWebMvc
@EnableTransactionManagement
@EnableGlobalMethodSecurity(prePostEnabled = true)
@EnableJpaRepositories(basePackages = "test",
        entityManagerFactoryRef = "entityManagerFactory",
        transactionManagerRef = "transactionManager")
 public class WebConfig extends WebMvcConfigurerAdapter {
    @Override
    public void configureDefaultServletHandling(
                DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }

    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/").setViewName("index");
    }

    @Bean
    public ViewResolver viewResolver() {
        InternalResourceViewResolver bean = new InternalResourceViewResolver();

        bean.setViewClass(JstlView.class);
        bean.setPrefix("/WEB-INF/view/");
bean.setSuffix(".html");


        return bean;
    }
}

public class MyAppInitializer extends
                AbstractAnnotationConfigDispatcherServletInitializer {
    @Override
    public void onStartup(final ServletContext sc) throws ServletException {
        System.out.println("onStartup!");

        AnnotationConfigWebApplicationContext root =
                new AnnotationConfigWebApplicationContext();

        root.register(WebConfig.class);
        root.setServletContext(sc);

        root.scan("test");
        //sc.addListener(new ContextLoaderListener(root));

        ServletRegistration.Dynamic appServlet =
                sc.addServlet("dispatcher", new DispatcherServlet(new GenericWebApplicationContext()));
        appServlet.setLoadOnStartup(1);
        appServlet.addMapping("/");
    }

        @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[] {SecurityConfig.class};
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[]{WebConfig.class};
    }

    @Override
    protected String[] getServletMappings() {
        return new String[]{"/"};
    }
}

@RestController
@RequestMapping("/home")
public class HomeController {

    @GetMapping(value = "/hello")
    public String hello() {
        return "Hello";
    }
}

@Configuration
@EnableGlobalMethodSecurity(prePostEnabled=true)
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter  {
    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
        httpSecurity.authorizeRequests().antMatchers("/").permitAll();
    }

    @Bean
    BCryptPasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }
}

public class SecurityWebApplicationInitializer extends
                    AbstractSecurityWebApplicationInitializer {
    public SecurityWebApplicationInitializer() {
        super(SecurityConfig.class, WebConfig.class);
    }
}

public class Main {
    public static void main(String[] args) {

    }
}

public class MyAppInitializer extends
                AbstractAnnotationConfigDispatcherServletInitializer {
    @Override
    public void onStartup(final ServletContext sc) throws ServletException {
        System.out.println("onStartup!");

        AnnotationConfigWebApplicationContext root =
                new AnnotationConfigWebApplicationContext();

        root.register(WebConfig.class);
        root.setServletContext(sc);

        root.scan("test");
        //sc.addListener(new ContextLoaderListener(root));

        ServletRegistration.Dynamic appServlet =
                sc.addServlet("dispatcher", new DispatcherServlet(new GenericWebApplicationContext()));
        appServlet.setLoadOnStartup(1);
        appServlet.addMapping("/");
    }

        @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[] {SecurityConfig.class};
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[]{WebConfig.class};
    }

    @Override
    protected String[] getServletMappings() {
        return new String[]{"/"};
    }
}

@Configuration
@ComponentScan("test")
@EnableWebMvc
@EnableTransactionManagement
@EnableGlobalMethodSecurity(prePostEnabled = true)
@EnableJpaRepositories(basePackages = "test",
        entityManagerFactoryRef = "entityManagerFactory", transactionManagerRef = "transactionManager")
 public class WebConfig extends WebMvcConfigurerAdapter {
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**");
    }


    @Override
    public void configureDefaultServletHandling(
                DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }
}

@RestController
public class HomeController {
    @GetMapping("/")
    public String getHome()  {
        return "home";
    }
}

@RestController
public class TestController {
    @RequestMapping("/test")
    public String test()  {
        return "test";
    }
}

HomeController.java：


@Configuration
@ComponentScan("test")
@EnableWebMvc
@EnableTransactionManagement
@EnableGlobalMethodSecurity(prePostEnabled = true)
@EnableJpaRepositories(basePackages = "test",
        entityManagerFactoryRef = "entityManagerFactory",
        transactionManagerRef = "transactionManager")
 public class WebConfig extends WebMvcConfigurerAdapter {
    @Override
    public void configureDefaultServletHandling(
                DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }

    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/").setViewName("index");
    }

    @Bean
    public ViewResolver viewResolver() {
        InternalResourceViewResolver bean = new InternalResourceViewResolver();

        bean.setViewClass(JstlView.class);
        bean.setPrefix("/WEB-INF/view/");
bean.setSuffix(".html");


        return bean;
    }
}

public class MyAppInitializer extends
                AbstractAnnotationConfigDispatcherServletInitializer {
    @Override
    public void onStartup(final ServletContext sc) throws ServletException {
        System.out.println("onStartup!");

        AnnotationConfigWebApplicationContext root =
                new AnnotationConfigWebApplicationContext();

        root.register(WebConfig.class);
        root.setServletContext(sc);

        root.scan("test");
        //sc.addListener(new ContextLoaderListener(root));

        ServletRegistration.Dynamic appServlet =
                sc.addServlet("dispatcher", new DispatcherServlet(new GenericWebApplicationContext()));
        appServlet.setLoadOnStartup(1);
        appServlet.addMapping("/");
    }

        @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[] {SecurityConfig.class};
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[]{WebConfig.class};
    }

    @Override
    protected String[] getServletMappings() {
        return new String[]{"/"};
    }
}

@RestController
@RequestMapping("/home")
public class HomeController {

    @GetMapping(value = "/hello")
    public String hello() {
        return "Hello";
    }
}

@Configuration
@EnableGlobalMethodSecurity(prePostEnabled=true)
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter  {
    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
        httpSecurity.authorizeRequests().antMatchers("/").permitAll();
    }

    @Bean
    BCryptPasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }
}

public class SecurityWebApplicationInitializer extends
                    AbstractSecurityWebApplicationInitializer {
    public SecurityWebApplicationInitializer() {
        super(SecurityConfig.class, WebConfig.class);
    }
}

public class Main {
    public static void main(String[] args) {

    }
}

public class MyAppInitializer extends
                AbstractAnnotationConfigDispatcherServletInitializer {
    @Override
    public void onStartup(final ServletContext sc) throws ServletException {
        System.out.println("onStartup!");

        AnnotationConfigWebApplicationContext root =
                new AnnotationConfigWebApplicationContext();

        root.register(WebConfig.class);
        root.setServletContext(sc);

        root.scan("test");
        //sc.addListener(new ContextLoaderListener(root));

        ServletRegistration.Dynamic appServlet =
                sc.addServlet("dispatcher", new DispatcherServlet(new GenericWebApplicationContext()));
        appServlet.setLoadOnStartup(1);
        appServlet.addMapping("/");
    }

        @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[] {SecurityConfig.class};
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[]{WebConfig.class};
    }

    @Override
    protected String[] getServletMappings() {
        return new String[]{"/"};
    }
}

@Configuration
@ComponentScan("test")
@EnableWebMvc
@EnableTransactionManagement
@EnableGlobalMethodSecurity(prePostEnabled = true)
@EnableJpaRepositories(basePackages = "test",
        entityManagerFactoryRef = "entityManagerFactory", transactionManagerRef = "transactionManager")
 public class WebConfig extends WebMvcConfigurerAdapter {
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**");
    }


    @Override
    public void configureDefaultServletHandling(
                DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }
}

@RestController
public class HomeController {
    @GetMapping("/")
    public String getHome()  {
        return "home";
    }
}

@RestController
public class TestController {
    @RequestMapping("/test")
    public String test()  {
        return "test";
    }
}

TestController.java：


@Configuration
@ComponentScan("test")
@EnableWebMvc
@EnableTransactionManagement
@EnableGlobalMethodSecurity(prePostEnabled = true)
@EnableJpaRepositories(basePackages = "test",
        entityManagerFactoryRef = "entityManagerFactory",
        transactionManagerRef = "transactionManager")
 public class WebConfig extends WebMvcConfigurerAdapter {
    @Override
    public void configureDefaultServletHandling(
                DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }

    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/").setViewName("index");
    }

    @Bean
    public ViewResolver viewResolver() {
        InternalResourceViewResolver bean = new InternalResourceViewResolver();

        bean.setViewClass(JstlView.class);
        bean.setPrefix("/WEB-INF/view/");
bean.setSuffix(".html");


        return bean;
    }
}

public class MyAppInitializer extends
                AbstractAnnotationConfigDispatcherServletInitializer {
    @Override
    public void onStartup(final ServletContext sc) throws ServletException {
        System.out.println("onStartup!");

        AnnotationConfigWebApplicationContext root =
                new AnnotationConfigWebApplicationContext();

        root.register(WebConfig.class);
        root.setServletContext(sc);

        root.scan("test");
        //sc.addListener(new ContextLoaderListener(root));

        ServletRegistration.Dynamic appServlet =
                sc.addServlet("dispatcher", new DispatcherServlet(new GenericWebApplicationContext()));
        appServlet.setLoadOnStartup(1);
        appServlet.addMapping("/");
    }

        @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[] {SecurityConfig.class};
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[]{WebConfig.class};
    }

    @Override
    protected String[] getServletMappings() {
        return new String[]{"/"};
    }
}

@RestController
@RequestMapping("/home")
public class HomeController {

    @GetMapping(value = "/hello")
    public String hello() {
        return "Hello";
    }
}

@Configuration
@EnableGlobalMethodSecurity(prePostEnabled=true)
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter  {
    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
        httpSecurity.authorizeRequests().antMatchers("/").permitAll();
    }

    @Bean
    BCryptPasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }
}

public class SecurityWebApplicationInitializer extends
                    AbstractSecurityWebApplicationInitializer {
    public SecurityWebApplicationInitializer() {
        super(SecurityConfig.class, WebConfig.class);
    }
}

public class Main {
    public static void main(String[] args) {

    }
}

public class MyAppInitializer extends
                AbstractAnnotationConfigDispatcherServletInitializer {
    @Override
    public void onStartup(final ServletContext sc) throws ServletException {
        System.out.println("onStartup!");

        AnnotationConfigWebApplicationContext root =
                new AnnotationConfigWebApplicationContext();

        root.register(WebConfig.class);
        root.setServletContext(sc);

        root.scan("test");
        //sc.addListener(new ContextLoaderListener(root));

        ServletRegistration.Dynamic appServlet =
                sc.addServlet("dispatcher", new DispatcherServlet(new GenericWebApplicationContext()));
        appServlet.setLoadOnStartup(1);
        appServlet.addMapping("/");
    }

        @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[] {SecurityConfig.class};
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[]{WebConfig.class};
    }

    @Override
    protected String[] getServletMappings() {
        return new String[]{"/"};
    }
}

@Configuration
@ComponentScan("test")
@EnableWebMvc
@EnableTransactionManagement
@EnableGlobalMethodSecurity(prePostEnabled = true)
@EnableJpaRepositories(basePackages = "test",
        entityManagerFactoryRef = "entityManagerFactory", transactionManagerRef = "transactionManager")
 public class WebConfig extends WebMvcConfigurerAdapter {
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**");
    }


    @Override
    public void configureDefaultServletHandling(
                DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }
}

@RestController
public class HomeController {
    @GetMapping("/")
    public String getHome()  {
        return "home";
    }
}

@RestController
public class TestController {
    @RequestMapping("/test")
    public String test()  {
        return "test";
    }
}

我从配置类中删除了视图解析器，因为我只打算将rest控制器用作API提供程序。谢谢你来听我的TED演讲

PS以下是

pom.xml

的外观（这似乎很重要，因为使用不同的poms Intellij不会自动生成战争爆发工件）：

PS如果您也使用Idea Intellij，请按照以下步骤在Tomcat上部署应用程序。

URL中的“测试”从何而来？请改为尝试

localhost:8080/home/hello

。如果这样做有效，问题是您需要告诉它相对于test\u war\u explodes服务。不，它会自动打开该url-Intellij的想法，只是没有部署localhost！。。。你的评论毫无意义。您在哪里告诉IntelliJ使用“测试战争”作为基本路径？既然您在共享的代码中没有指定它，那么除非您在其他地方告诉IntelliJ（例如在运行配置中，在您指定端口8088的同一位置），否则它将只在localhost/而不是localhost/test\u war\u上提供它。最后，他在/springblog上访问url，与我在/test_war_上访问url的方式类似。这不是问题：用Controller替换RestController并在方法上添加ResponseBody注释。让我知道responseRestController是组件的特殊形式。没有必要把两者都加上