Http 404 Spring java配置

您好，我在spring中遇到java配置问题。我试图通过从多个教程中学习来完成它，但我仍然有一些错误。有线索吗

AppConfig.java

package org.spring.mvc.libraryDemo.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
import org.springframework.web.servlet.view.JstlView;

/**
 * Created by wiktor on 28.12.2015.
 */
@Configuration //adnotacja oznaczajaca plik konfiguracyjny
@EnableWebMvc
@ComponentScan(basePackages = "org.spring.mvc.libraryDemo") //enable skan komponentow
@Import({AppConfig.class}) //na co musi jeszcze uwazac Spring
public class AppConfig {

    @Bean
    public ViewResolver viewResolver() {
        InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
        viewResolver.setViewClass(JstlView.class);
        viewResolver.setPrefix("/WEB-INF/pages/");
        viewResolver.setSuffix(".jsp");
        return viewResolver;
    }

}

SpringConfigInit

package org.spring.mvc.libraryDemo.config;

import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;

public class SpringConfigInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {

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

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return null;
    }

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

}

Web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">
<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/applicationContext.xml</param-value>
</context-param>
<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
    <servlet-name>dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>

上下文配置位置
/WEB-INF/applicationContext.xml
org.springframework.web.context.ContextLoaderListener
调度员
org.springframework.web.servlet.DispatcherServlet
1.
调度员
/

使用这种类型的servlet映射，我想你会在{warfile name}/找到你的应用程序，而不是在

你在这里混合了两种方法（如你的web.xml所示）：

带有/WEB-INF/applicationContext.xml的ContextLoaderListener：这意味着您的spring应用程序将由applicationContext.xml中的xml内容进行配置

但显然您想要使用Java配置，即@Configuration注释类下定义的bean。要启用此功能，一种方法是将web xml更改为以下内容：

<servlet>
    <servlet-name>spring</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
    <init-param>
        <param-name>contextClass</param-name>
        <param-value>org.springframework.web.context.support.AnnotationConfigWebApplicationContext</param-value>
    </init-param>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>SpringRootConfig</param-value>
    </init-param>
</servlet>

春天
org.springframework.web.servlet.DispatcherServlet
1.
上下文类
org.springframework.web.context.support.AnnotationConfigWebApplicationContext
上下文配置位置
SpringRootConfig

注释ConfigWebApplicationContext是此处的关键。这将扫描您的类路径，并将@Configuration内容考虑在内

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">

    <context-param>
        <param-name>contextClass</param-name>
        <param-value>
            org.springframework.web.context.support.AnnotationConfigWebApplicationContext
        </param-value>
    </context-param>

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>org.spring.mvc.libraryDemo.config.AppConfig</param-value>
    </context-param>

    <servlet>
        <servlet-name>spring</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
<servlet-mapping>
    <servlet-name>spring</servlet-name>
    <url-pattern>/</url-pattern>
        </servlet-mapping>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
</web-app>

上下文类
org.springframework.web.context.support.AnnotationConfigWebApplicationContext
上下文配置位置
org.spring.mvc.libraryDemo.config.AppConfig
春天
org.springframework.web.servlet.DispatcherServlet
1.
春天
/
org.springframework.web.context.ContextLoaderListener

我所说的warfile名称是指：如果您的warfile名称是MyApp.war，那么url应该是。MyApp后面必须有一个尾随的正斜杠（堆栈溢出忽略了它）。这就是你尝试过的吗？是的，但是没有发生类似的事情，但是相同的：d与你的尝试我在init param之间有错误。

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">

    <context-param>
        <param-name>contextClass</param-name>
        <param-value>
            org.springframework.web.context.support.AnnotationConfigWebApplicationContext
        </param-value>
    </context-param>

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>org.spring.mvc.libraryDemo.config.AppConfig</param-value>
    </context-param>

    <servlet>
        <servlet-name>spring</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
<servlet-mapping>
    <servlet-name>spring</servlet-name>
    <url-pattern>/</url-pattern>
        </servlet-mapping>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
</web-app>