Question

我正在使用Spring启动RESTful服务，Eclipse中的Java 8。每当我尝试从Postman（或任何其他地方）发送HTTP请求时，我都会收到404 Not found代码。除了其他的东西（代码的变化），我尝试安装Tomcat但似乎没有问题（它似乎很好，它适用于其他项目）。在过去的两个小时里，我在想象中尝试了一切。

open()

休息控制器：包hr.fer.rznu.controller;

package hr.fer.rznu.init;

import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class Lab1Application implements CommandLineRunner{

public static void main(String[] args) {
    SpringApplication.run(Lab1Application.class, args);
}

@Override
public void run(String... args) throws Exception {

}

}

这是在build.gradle：

import java.util.List;

import hr.fer.rznu.model.User;
import hr.fer.rznu.service.UserService;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.util.UriComponentsBuilder;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;



@RestController
public class RestAPIController {

@Autowired
UserService userService;

@RequestMapping(value = "/user/", method = RequestMethod.POST)
public ResponseEntity<Void> createUser(@RequestBody User user, UriComponentsBuilder ucBuilder) {
    Long id = userService.addUser(user);
    HttpHeaders headers = new HttpHeaders();
    headers.setLocation(ucBuilder.path("/user/{id}").buildAndExpand(id).toUri());
    return new ResponseEntity<Void>(headers, HttpStatus.CREATED);
}

@RequestMapping(value = "/user/", method = RequestMethod.GET)
public ResponseEntity<List<User>> getListOfUsers() {
    List<User> users = userService.getAllUsers();
    if(users.isEmpty()){
        return new ResponseEntity<List<User>>(HttpStatus.NO_CONTENT);
    }
    return new ResponseEntity<List<User>>(users, HttpStatus.OK);
}


}

如果需要，我可以提供更多代码或信息。我有用户模型，＆＃34; UserService＆＃34;像getUserById等方法。有人有任何建议吗？

Answer 1

一些事情

似乎@SpringBootApplication在不同的包中而不是RestController

尝试以下，

@SpringBootApplication(scanBasePackages={"hr.fer.rznu"})

映射中的

删除结束斜杠/

@RequestMapping(value = "/user", method = RequestMethod.POST)

和

@RequestMapping(value = "/user", method = RequestMethod.GET)

在DispatcherServlet中找不到带有URI [/ user]的HTTP请求的映射，其名称为＆＃39; dispatcherServlet＆＃39;

1 个答案: