Java Spring引导REST服务_Java_Spring_Maven_Spring Rest

Java Spring引导REST服务

java spring maven

Java Spring引导REST服务,java,spring,maven,spring-rest,Java,Spring,Maven,Spring Rest,在我开口之前，我为我的蹩脚英语道歉目前，我使用springboot开发了一些restweb服务。我使用Maven、JPA和Postgresql作为数据库。我的问题是，当我运行我的spring boot时，我看到没有错误，它正常启动；但当我在浏览器中尝试时，会出现以下错误：在eclipse上的控制台中，我看到以下类似日志的错误： Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.u

在我开口之前，我为我的蹩脚英语道歉

目前，我使用

springboot

开发了一些restweb服务。我使用Maven、JPA和Postgresql作为数据库。我的问题是，当我运行我的

spring boot

时，我看到没有错误，它正常启动；但当我在浏览器中尝试时，会出现以下错误：

在eclipse上的控制台中，我看到以下类似日志的错误：

Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)

MemberController.java

package com.altoremittance.data;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.boot.autoconfigure.jms.JndiConnectionFactoryAutoConfiguration;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;


@Configuration
@SpringBootApplication
@EnableJpaRepositories
@EnableAutoConfiguration
@ComponentScan("com.altoremittance.data.service")
public class Application {

public static void main(String[] args) {
    SpringApplication.run(Application.class, args);
}

}

package com.altoremittance.data.controller;

import java.util.List;

import org.json.simple.JSONObject;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import com.altoremittance.service.MemberService;

import com.altoremittance.data.domain.Member;

@RestController
@RequestMapping("/member")
public class MemberController {

    @Autowired
    private MemberService memberService;

    @RequestMapping(value="/addMember", method=RequestMethod.GET,     produces="application/json")
    public @ResponseBody String getAllMember(){

        JSONObject jo = new JSONObject();

        jo.put("err_code", "00");

        return jo.toString();
    }

}

package com.altoremittance.service;

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Repository;

import com.altoremittance.data.domain.Member;

public interface MemberRepository extends JpaRepository<Member, Long> {

}

package com.altoremittance.service;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.altoremittance.data.domain.Member;

@Service
@Transactional
public class MemberServiceImpl implements MemberService {

    @Autowired
    private MemberRepository memberRepo;

    public List<Member> findAll(){
        return memberRepo.findAll();
    }

}

MemberRepository.java

package com.altoremittance.data;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.boot.autoconfigure.jms.JndiConnectionFactoryAutoConfiguration;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;


@Configuration
@SpringBootApplication
@EnableJpaRepositories
@EnableAutoConfiguration
@ComponentScan("com.altoremittance.data.service")
public class Application {

public static void main(String[] args) {
    SpringApplication.run(Application.class, args);
}

}

package com.altoremittance.data.controller;

import java.util.List;

import org.json.simple.JSONObject;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import com.altoremittance.service.MemberService;

import com.altoremittance.data.domain.Member;

@RestController
@RequestMapping("/member")
public class MemberController {

    @Autowired
    private MemberService memberService;

    @RequestMapping(value="/addMember", method=RequestMethod.GET,     produces="application/json")
    public @ResponseBody String getAllMember(){

        JSONObject jo = new JSONObject();

        jo.put("err_code", "00");

        return jo.toString();
    }

}

package com.altoremittance.service;

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Repository;

import com.altoremittance.data.domain.Member;

public interface MemberRepository extends JpaRepository<Member, Long> {

}

package com.altoremittance.service;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.altoremittance.data.domain.Member;

@Service
@Transactional
public class MemberServiceImpl implements MemberService {

    @Autowired
    private MemberRepository memberRepo;

    public List<Member> findAll(){
        return memberRepo.findAll();
    }

}

package com.altoremitance.service；
导入org.springframework.data.jpa.repository.JpaRepository；
导入org.springframework.stereotype.Component；
导入org.springframework.stereotype.Repository；
导入com.altoremitance.data.domain.Member；
公共接口MemberRepository扩展了JpaRepository{
}

MemberService.java 包com.altoremitance.service

import java.util.List;

import org.springframework.stereotype.Component;

import com.altoremittance.data.domain.Member;

public interface MemberService {

    public List<Member> findAll();

}

import java.util.List；
导入org.springframework.stereotype.Component；
导入com.altoremitance.data.domain.Member；
公共接口成员服务{
公共列表findAll（）；
}

MemberServiceImpl.java

package com.altoremittance.data;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.boot.autoconfigure.jms.JndiConnectionFactoryAutoConfiguration;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;


@Configuration
@SpringBootApplication
@EnableJpaRepositories
@EnableAutoConfiguration
@ComponentScan("com.altoremittance.data.service")
public class Application {

public static void main(String[] args) {
    SpringApplication.run(Application.class, args);
}

}

package com.altoremittance.data.controller;

import java.util.List;

import org.json.simple.JSONObject;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import com.altoremittance.service.MemberService;

import com.altoremittance.data.domain.Member;

@RestController
@RequestMapping("/member")
public class MemberController {

    @Autowired
    private MemberService memberService;

    @RequestMapping(value="/addMember", method=RequestMethod.GET,     produces="application/json")
    public @ResponseBody String getAllMember(){

        JSONObject jo = new JSONObject();

        jo.put("err_code", "00");

        return jo.toString();
    }

}

package com.altoremittance.service;

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Repository;

import com.altoremittance.data.domain.Member;

public interface MemberRepository extends JpaRepository<Member, Long> {

}

package com.altoremittance.service;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.altoremittance.data.domain.Member;

@Service
@Transactional
public class MemberServiceImpl implements MemberService {

    @Autowired
    private MemberRepository memberRepo;

    public List<Member> findAll(){
        return memberRepo.findAll();
    }

}

package com.altoremitance.service；
导入java.util.List；
导入org.springframework.beans.factory.annotation.Autowired；
导入org.springframework.stereotype.Component；
导入org.springframework.stereotype.Service；
导入org.springframework.transaction.annotation.Transactional；
导入com.altoremitance.data.domain.Member；
@服务
@交易的
公共类MemberServiceImpl实现MemberService{
@自动连线
私人会员库会员回购；
公共列表findAll（）{
返回memberRepo.findAll（）；
}
}

我看到了您的，并且我看到您正在尝试访问

http://localhost:8090/member/getAllMember

如果控制器

@RequestMapping

的定义类似于

addMember

，为什么要尝试访问

getAllMember

路径

尝试访问

http://localhost:8090/member/addmember

URL，而不是上一个URL

希望这有帮助

您好，

我看到了您的，并且我看到您正在尝试访问

http://localhost:8090/member/getAllMember

如果控制器

@RequestMapping

的定义类似于

addMember

，为什么要尝试访问

getAllMember

路径

尝试访问

http://localhost:8090/member/addmember

URL，而不是上一个URL

希望这有帮助

关于，

最后，我知道这个问题，我在我的应用程序中进行了更新

package com.altoremittance.data; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.EnableAutoConfiguration; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration; import org.springframework.boot.autoconfigure.jms.JndiConnectionFactoryAutoConfiguration; import org.springframework.cache.CacheManager; import org.springframework.cache.annotation.EnableCaching; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.ComponentScan; import org.springframework.context.annotation.Configuration; import org.springframework.data.jpa.repository.config.EnableJpaRepositories; @Configuration @SpringBootApplication @EnableJpaRepositories @EnableAutoConfiguration @ComponentScan("com.altoremittance.data.service") public class Application { public static void main(String[] args) { SpringApplication.run(Application.class, args); } }

package com.altoremittance.data.controller; import java.util.List; import org.json.simple.JSONObject; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Qualifier; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.bind.annotation.RestController; import com.altoremittance.service.MemberService; import com.altoremittance.data.domain.Member; @RestController @RequestMapping("/member") public class MemberController { @Autowired private MemberService memberService; @RequestMapping(value="/addMember", method=RequestMethod.GET, produces="application/json") public @ResponseBody String getAllMember(){ JSONObject jo = new JSONObject(); jo.put("err_code", "00"); return jo.toString(); } }

package com.altoremittance.service; import org.springframework.data.jpa.repository.JpaRepository; import org.springframework.stereotype.Component; import org.springframework.stereotype.Repository; import com.altoremittance.data.domain.Member; public interface MemberRepository extends JpaRepository<Member, Long> { }

package com.altoremittance.service; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Component; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import com.altoremittance.data.domain.Member; @Service @Transactional public class MemberServiceImpl implements MemberService { @Autowired private MemberRepository memberRepo; public List<Member> findAll(){ return memberRepo.findAll(); } }
在@ComponentScan中，我改为@ComponentScan（“com.altoremitance”）
我指的是这篇文章：

谢谢大家。
最后，我知道这个问题，我在我的应用程序中进行了更新。java

package com.altoremittance.data; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.EnableAutoConfiguration; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration; import org.springframework.boot.autoconfigure.jms.JndiConnectionFactoryAutoConfiguration; import org.springframework.cache.CacheManager; import org.springframework.cache.annotation.EnableCaching; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.ComponentScan; import org.springframework.context.annotation.Configuration; import org.springframework.data.jpa.repository.config.EnableJpaRepositories; @Configuration @SpringBootApplication @EnableJpaRepositories @EnableAutoConfiguration @ComponentScan("com.altoremittance.data.service") public class Application { public static void main(String[] args) { SpringApplication.run(Application.class, args); } }

package com.altoremittance.data.controller; import java.util.List; import org.json.simple.JSONObject; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Qualifier; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.bind.annotation.RestController; import com.altoremittance.service.MemberService; import com.altoremittance.data.domain.Member; @RestController @RequestMapping("/member") public class MemberController { @Autowired private MemberService memberService; @RequestMapping(value="/addMember", method=RequestMethod.GET, produces="application/json") public @ResponseBody String getAllMember(){ JSONObject jo = new JSONObject(); jo.put("err_code", "00"); return jo.toString(); } }

package com.altoremittance.service; import org.springframework.data.jpa.repository.JpaRepository; import org.springframework.stereotype.Component; import org.springframework.stereotype.Repository; import com.altoremittance.data.domain.Member; public interface MemberRepository extends JpaRepository<Member, Long> { }

package com.altoremittance.service; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Component; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import com.altoremittance.data.domain.Member; @Service @Transactional public class MemberServiceImpl implements MemberService { @Autowired private MemberRepository memberRepo; public List<Member> findAll(){ return memberRepo.findAll(); } }
在@ComponentScan中，我改为@ComponentScan（“com.altoremitance”）
我指的是这篇文章：

谢谢大家。
将ComponentScan设置为
@ComponentScan（“com.altoremitance”）
将ComponentScan设置为
@ComponentScan（“com.altoremitance”）
作为错误状态，您是否尝试添加了带有/error的请求映射？您好，谢谢您的回复，您的意思是否与MemberController.java中的类似：@RequestMapping（value=“/error”，method=RequestMethod.GET）public@ResponseBody String displayError（）{return“error”；}作为错误状态，您是否尝试使用/error添加请求映射？您好，Hardik，感谢您的回复，您的意思是像MemberController.java中这样：@RequestMapping（value=“/error”，method=RequestMethod.GET）public@ResponseBody String displayError（）{return“error”}谢谢您的回复。我已经更新了这个，但仍然不起作用。嗨，彼得，你不需要在你的代码中更新任何东西。。仅访问
http://localhost:8090/member/addmember
URL而不是上一个。。。你能提供你的请愿书的新截图吗？感谢您的回复。我已经更新了这个，但仍然不起作用。嗨，彼得，你不需要在你的代码中更新任何东西。。仅访问
http://localhost:8090/member/addmember
URL而不是上一个。。。你能提供你的请愿书的新截图吗？关于你为什么将
@Configuration
，
@EnableAutoconfiguration
等注释与
@SpringBootApplication
放在一起？阅读以了解
@SpringBootApplication
与使用
@Configuration
、
@EnableAutoConfiguration
和
@ComponentScan
注释相同。当然，我现在已将其删除…谢谢@jcgarcia.）为什么要将
@Configuration
、
@EnableAutoconfiguration
等注释与
@SpringBootApplication
放在一起？阅读以了解
@SpringBootApplication
与使用
@Configuration
、
@EnableAutoConfiguration
和
@ComponentScan
注释相同。当然，我现在已将其删除…谢谢@jcgarcia.）