Question

当我使用Angularjs向SpringMVC发送数据时，SpringMVC无法获取数据，它是400或null对象。

所以，我尝试在浏览器中查看控制台信息，我发现RequestHeaders和ResponseHeaders之间存在差异，我将其显示如下：

    response headers

    Connection:close
    Content-Language:en
    Content-Length:1105

    Content-Type:text/html;charset=utf-8

    Date:Mon, 25 Apr 2016 13:52:07 GMT
    Proxy-Connection:keep-alive
    Server:Apache-Coyote/1.1


    Request Headers
    view source
    Accept:application/json, text/plain, */*
    Accept-Encoding:gzip, deflate, lzma
    Accept-Language:zh-CN,zh;q=0.8
    Connection:keep-alive
    Content-Length:50
    Content-Type:application/x-www-form-urlencoded
    Cookie:JSESSIONID=21DCE26028722FE4C396D8CA3D6FC4C4

我尝试更改springMVC的响应头，但它没有任何变化，仍然是这样。

@ResponseBody
@RequestMapping(value = "/saveNewUser", method = RequestMethod.POST, consumes = "application/x-www-form-urlencoded")
public String saveRegisterInfo(@RequestParam("user") User user) {


 //I can't get user here. When I use @RequestBody, user is null. 
 //When I use @RequestParam, it's error 400 or 415.
 //these days I try to learn Angularjs,I think the type of data make me crazy,just like contentType, json

    System.out.println(user);

    //      User u = userServive.saveRegisterUser(user);
    if (user != null) {
        return "1";

    } else {

        return "0";
    }
}

如何将conent-type从“text / html; charset = utf-8”更改为“application / json，text / plain”for response-headers？

Answer 1

两个步骤可以帮到你;

将Jackson Mapper Asl添加到项目的依赖项

<dependency>  
  <groupId>org.codehaus.jackson</groupId>  
  <artifactId>jackson-mapper-asl</artifactId>  
  <version>1.9.10</version>  
</dependency>

将@ResponseBody注释添加到控制器

然后您的控制器将响应JSON对象。

SpringMVC-Angularjs：如何在SpringMVC中更改内容类型？

1 个答案: