java Spring启动:不支持请求方法“POST”
我开始在spring boot上工作,并尝试一个简单的Rest控制器。 我有两个使用HTTPGET的方法,它们工作得很好。 但是,当我执行HTTP POST时,它不起作用,显示: :不支持请求方法“POST”
我的控制器代码如下:-
enter code here
package com.example.web.api;
import java.math.BigInteger;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.PathVariable;
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 com.example.model.Greeting;
@RestController
public class GreetingController {
private static BigInteger nextId;
private static Map<BigInteger, Greeting> greetingMap;
private static Greeting save(Greeting greeting){
if (greetingMap==null){
greetingMap = new HashMap<BigInteger, Greeting>();
nextId = BigInteger.ONE;
}
greeting.setId(nextId);
nextId=nextId.add(BigInteger.ONE);
greetingMap.put(greeting.getId(), greeting);
return greeting;
}
static {
// First Greeting
Greeting g1 = new Greeting();
g1.setText("Hello World!!");
save(g1);
// Second Greeting
Greeting g2 = new Greeting();
g2.setText("Hola Mundo!!");
save(g2);
}
/*
*
* Issue a GET to view greetings
*
*/
@RequestMapping(
value="/api/greetings",
method=RequestMethod.GET,
produces=MediaType.APPLICATION_JSON_VALUE
)
public ResponseEntity<Collection<Greeting>> getGreetings(){
Collection<Greeting> greetings=greetingMap.values();
return new ResponseEntity<Collection<Greeting>>(greetings, HttpStatus.OK);
}
/*
*
* Issue a GET to view single greeting by id value
*
*/
@RequestMapping(
value="/api/greetings/{id}",
method=RequestMethod.GET,
produces=MediaType.APPLICATION_JSON_VALUE
)
public ResponseEntity<Greeting> getGreeting(@PathVariable("id") BigInteger id){
Greeting greeting = greetingMap.get(id);
if(greeting == null){
return new ResponseEntity<Greeting>(HttpStatus.NOT_FOUND);
}
return new ResponseEntity <Greeting> (greeting, HttpStatus.OK);
}
/*
*
* Create a POST to add a greeting
*
*/
@RequestMapping(
value="/api/greetings/",
method=RequestMethod.POST,
consumes=MediaType.APPLICATION_JSON_VALUE,
produces=MediaType.APPLICATION_JSON_VALUE
)
public ResponseEntity<Greeting> createGreeting(@RequestBody Greeting greeting){
Greeting savedGreeting = save(greeting);
return new ResponseEntity <Greeting> (savedGreeting, HttpStatus.CREATED);
}
/* End of HTTP Methods */
}
敬请告知,createGreeting方法有什么问题
问候
# 1 楼答案
尝试将该值链接到另一个值,例如:
# 2 楼答案
您需要将内容类型修改为json
# 3 楼答案
POST方法有一个尾部斜杠
/api/greetings/
,您在curl调用中遗漏了它,另一个遗漏是Content-type
头。您应该告诉服务器您发送的数据类型curl -X POST -d '{"text":"hello"}' -H "Content-type:application/json" http://localhost:8080/api/greetings/
是一个有效的curl调用