AngularJS发送异步Get/Post请求方法

(编辑：jimmy 日期: 2024/11/20 浏览：2)
1、在页面中加入AngularJS并为页面绑定ng-app 和 ng-controller
<body ng-app="MyApp" ng-controller="MyCtrl" >
...
<script src="/UploadFiles/2021-04-02/angular.min.js">

2、添加必要的控件并绑定相应的事件


 get:<input type="text" ng-model="param">{{param}} <br>
 post: <input type="text" ng-model="user.name"><input type="text" ng-model="user.password"><br>
 <button ng-click="get()">Get</button>
 <button ng-click="post()">Post</button>


3、在JS脚本中发送进行Get/Post请求
get


$scope.get = function () {
  $http.get("/get", {params: {param: $scope.param}})
   .success(function (data, header, config, status) {
    console.log(data);
   })
   .error(function (data, header, config, status) {
    console.log(data);
   })
  ;
 }


get 将参数放在URL中


$scope.get = function () {
  $http.get("/get"+$scope.param)
   .success(function (data, header, config, status) {
    console.log(data);
   })
   .error(function (data, header, config, status) {
    console.log(data);
   })
  ;
 }


post


$scope.post = function () {
  $http.post("/post", $scope.user)
   .success(function (data, header, config, status) {
    console.log(data);
   })
   .error(function (data, header, config, status) {
    console.log(data);
   })
  ;
 }


4、由Controller处理请求并返回结果
get


@RequestMapping("/get")
 @ResponseBody
 public Map<String,String> get(String param) {
  System.out.println("param："+param);
  response.put("state", "success");//将数据放在Map对象中
  return response;
 }


post


 @RequestMapping("/post2")
 @ResponseBody
 public void post2(@RequestBody User user, HttpServletResponse resp) {
  //返回不同的http状态
  if(user.getName()!=null&&!user.getName().equals("")){
   resp.setStatus(200);
  }
  else{
   resp.setStatus(300);
  }
 }


如果需要配置请求头部


  $http({
   method : "POST",
   url : "/post",
   data : $scope.user
  }).success(function(data, header, config, status) {
   console.log(data);
  }).error(function(data, header, config, status) {
   console.log(data);
  });


5、由JS http请求的回调函数处理并执行下一步操作
HTML


<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>Request</title>
</head>

<body ng-app="MyApp" ng-controller="MyCtrl" >
get:<input type="text" ng-model="param"><br>
post: <input type="text" ng-model="user.name"><input type="text" ng-model="user.password"><br>
 <button ng-click="get()">Get</button>
 <button ng-click="post()">Post</button>
</body>
<script src="/UploadFiles/2021-04-02/angular.min.js">

sbt.js


var app = angular.module("MyApp", []);
app.controller("MyCtrl", function ($scope, $http) {

 $scope.get = function () {
  $http.get("/get", {params: {param: $scope.param}})
   .success(function (data, header, config, status) {
    console.log(data);
   })
   .error(function (response) {
    console.log(response);
   })
  ;
 }

 $scope.post = function () {
  $http.post("/post", $scope.user)
   .success(function (data, header, config, status) {
    console.log(data);
   })
   .error(function (data, header, config, status) {
    console.log(data);
   })
  ;
 }
});



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