英文:
do not allow {} as request body
问题
我有以下的POST方法处理程序：
@PostMapping("/endpoint")
public int myEndpoint(@RequestBody MyBody body) {
return body.foo;
}
它接受以下的请求体：
class MyBody {
private int foo;
public MyBody() {}
public MyBody(int foo) {
this.foo = foo;
}
public int getFoo() {
return this.foo;
}
}
现在，我期望当我使用{}作为请求体向/endpoint发出请求时，它会返回状态码400，但我却得到了状态码200和body.foo的值是0。
我该如何确保{}的请求体被拒绝？
英文:
I have the following post method handler:
@PostMapping("/endpoint")
public int myEndpoint(@RequestBody MyBody body) {
return body.foo;
}
Which accepts the following request body:
class MyBody {
private int foo;
public MyBody() {}
public MyBody(foo) {
this.foo = foo;
}
public getFoo() {
return this.foo;
}
}
Now, I expect that when I make request to /endpoint with body {} It'll return status 400,
but I get 200 and body.foo is 0.
How can I make sure {} body is rejected?
答案1
得分: 1
您可以使用注解验证请求体：
```java
@PostMapping("/endpoint")
public int myEndpoint(@RequestBody @Valid MyBody body) {
return body.foo;
}
您还需要添加验证依赖项：
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
然后，MyBody 是一个数据传输对象（DTO），不要使用原始类型如 int，因为它们具有默认值。添加您需要的验证：
class MyBody {
@NotNull
private Integer foo;
...
}
英文:
You could validate the body with annotations :
@PostMapping("/endpoint")
public int myEndpoint(@RequestBody @Valid MyBody body) {
return body.foo;
}
you also need to add validations dependencie
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
then MyBody is a DTO, don't use primitive types as int since they have a default value. Add the validations you need :
class MyBody {
@NotNull
private Integer foo;
...
}
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