向Spring POST控制器发送JSON对象

Question

我试图通过AJAX向Spring控制器发送JSON对象,但收到错误415：

“服务器拒绝了此请求，因为请求实体的格式不受请求方法的请求资源的支持。”

@RequestMapping(
    value = "/ab/greeting", 
    method=RequestMethod.POST, headers = "Accept=*/*",
    produces = "application/json")
public String greetingSubmit(@RequestBody Person p1) {
    return "result";
}

package ab;

public class Person {

    String fname;
    String lname;
} 

下面是我的javascript调用-

function getGreeting() {
        $.ajax({
            url : "/ab/greeting",
            contentType: "application/json",
            type: 'POST',
            async: false,
            data: JSON.stringify({ fname: "John", lname: "Doe" }),
            success: function (data) {
            }
        });
    }

这里是我的依赖项杰克逊相关的依赖项在我的POM-

<dependency>
            <groupId>org.codehaus.jackson</groupId>
            <artifactId>jackson-mapper-asl</artifactId>
        </dependency>

        <dependency>
            <groupId>org.codehaus.jackson</groupId>
            <artifactId>jackson-core-asl</artifactId>
        </dependency>

讽刺的是，当我试着穿Spring靴的时候，它就起作用了。

Answer 1

添加consumes属性

@RequestMapping(value = "/ab/greeting", method=RequestMethod.POST,headers = "Accept=*/*",produces = "application/json", consumes="application/json")
public String greetingSubmit(@RequestBody Person p1) {
    return "result";
}