Question

我正在尝试调用由Spring REST实现的Web服务，但服务器响应400 http代码错误请求。我将公开一些有关Ihope的信息，有人可以帮助我。

这是我的控制器方法：

@RequestMapping(value = "/addpost", method = RequestMethod.POST,headers = "Accept=application/json")
public @ResponseBody
String addpost(@RequestBody PostDto post, @RequestBody UserDto user) {

    postservice.addPost(post, user);
    return "post inserted";

}

我称之为Web服务的方式： $ scope.addPost = function（）{

$scope.addPost = function() {


    $http({
        method : 'POST',
        url : 'http://localhost:8080/wall/addpost',
        data : ({
            post : $scope.postt,
            user : $scope.userr
        }),

    }).success(function(data, status, headers, config) {
        // $scope.persons.push(data);
        alert("Success");
        $scope.user = "";
        $scope.post = "";
    }).error(function(data, status, headers, config) {
        alert("erreur");
        // called asynchronously if an error occurs
        // or server returns response with an error status.
    });

};

    };

两个对象“userr”和“postt”：

$scope.userr = {
        userId : 15,
        firstName : "foulen",
        lastName: "ben foulen"};

    $scope.postt = {
            Id : "18",
            datePost : null,
            note: "Mon message"};

服务器的响应：

Etat HTTP 400 - Required PostDto parameter 'post' is not present

这些是请求和响应的标题：

  Remote Address:127.0.0.1:8080
Request URL:http://localhost:8080/wall/addpost
Request Method:POST
Status Code:400 Mauvaise Requête
Request Headersview source
Accept:application/json, text/plain, */*
Accept-Encoding:gzip, deflate
Accept-Language:fr-FR,fr;q=0.8,en-US;q=0.6,en;q=0.4
Connection:keep-alive
Content-Length:125
Content-Type:application/json;charset=UTF-8
Host:localhost:8080
Origin:http://localhost:8080
Referer:http://localhost:8080/wall/view/test.html
User-Agent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.2214.115 Safari/537.36
Request Payloadview source
{post: {idpost: 18, datePost: null, note: "Mon message"},…}
post: {idpost: 18, datePost: null, note: "Mon message"}
datePost: null
idpost: 18
note: "Mon message"
user: {userId: 15, firstName: "foulen", lastName: "ben foulen"}
firstName: "foulen"
lastName: "ben foulen"
userId: 15
Response Headersview source
Connection:close
Content-Length:983
Content-Type:text/html;charset=utf-8
Date:Fri, 27 Feb 2015 11:16:49 GMT
Server:Apache-Coyote/1.1

Answer 1

您传递的参数是否会被传递给控制器？我的意思是你在角度控制器中提到的url 'http://localhost:8080/wall/addpost'。

Answer 2

你的Angular代码似乎很好。我认为问题出在服务器代码的一边。请求参数@RequestParam PostDto post应该有一个值来指示其名称，如下所示：@RequestParam PostDto("post") post。根据{{3}}，此值默认为＆＃34;＆＃34;。

要完成，也许您应该使用更正常的方式发送Angular的请求。我的意思是使用json对象作为参数，而不是html表单。因为您已经拥有用户和帖子的模型。

希望帮助。

编辑：你可以修改你的角度代码，通过json对象发送参数。

$http({
        method : 'POST',
        url : 'http://localhost:8080/wall/addpost',
        data : ({
            post : $scope.postt,
            user : $scope.userr
        })
    }).success(function(data, status, headers, config) {
        // $scope.persons.push(data);
        alert("Success");
        $scope.user = "";
        $scope.post = "";
    }).error(function(data, status, headers, config) {
        alert("erreur");
        // called asynchronously if an error occurs
        // or server returns response with an error status.
    });

};

删除java代码中的标题：

@RequestMapping(value = "/addpost", method = RequestMethod.POST)
public @ResponseBody
String addpost(@RequestParam(value="post") PostDto post, @RequestParam(value="user") UserDto user) {

    postservice.addPost(post, user);
    return "post inserted";

}

编辑：型号：

$scope.postInfo= {
    userId : 15,
    firstName : "foulen",
    lastName: "ben foulen",
    postId : "18",
    datePost : null,
    postnote: "Mon message"
 };

AJAX：

$http({
    method : 'POST',
    url : 'http://localhost:8080/wall/addpost',
    data : ({
        post : $scope.postInfo
    }).// your other codes
})

JAVA：

@RequestMapping(value = "/addpost", method = RequestMethod.POST)
public @ResponseBody String addpost(@RequestBody PostInfoDto post) {
    // codes...
}

Answer 3

你不能使用两个@RequestBody，因为它只能绑定到一个对象（主体只能被消耗一次）。更简单的方法是引入一个包装器对象并更改你的签名。

由angularJs客户端调用spring Rest Web服务时出错

3 个答案: