springmvc接收集合引數,集合物件
阿新 • • 發佈:2018-12-15
Spring MVC在接收集合請求引數時,需要在Controller方法的集合引數裡前新增@RequestBody或者@RequestParam,而@RequestBody預設接收的enctype (MIME編碼)是application/json,因此傳送POST請求時需要設定請求報文頭資訊(ajax提交資料時設定提交型別為:contentType : 'application/json;charset=utf-8', //設定請求頭資訊),否則Spring MVC在解析集合請求引數時不會自動的轉換成JSON資料再解析成相應的集合。
本文通過List<Integer>、List<User>、List<Map<String,Object>>、User[]、User(bean裡面包含List)幾種較為複雜的集合引數示例
eg1:接收List<Integer>集合引數
1、Js程式碼:
var arr = [1,2,3]; $.jBox.confirm("確定要刪除資料嗎?", "warning",function () { $.ajax({ type: 'get', url: '${base.contextPath}/giving/index/del', dataType: 'json', data: {ids: arr}, success: function (result) { … }, error: function (result) { … } }) })
2、Controller方法:
@Controller
@RequestMapping("/wxgiving")
public class WxGivingController{
@RequestMapping(value = "/index/del", method = RequestMethod.GET)
@ResponseBody
public ReturnMsg del (@RequestParam(value = "ids[]")List <Integer> ids){
…
}
}
eg2: 接收List<User>、User[]集合引數:
1、js程式碼
var userList = new Array();
userList.push({name: "張三",pwd: "123"});
userList.push({name: "李四",pwd: "223"});
$.ajax({
type: "POST",
url: "${base.contextPath}/user/index/add",
data: JSON.stringify(userList),//將物件序列化成JSON字串
dataType:"json",
contentType : 'application/json;charset=utf-8', //設定請求頭資訊
success: function(result){
…
},
error: function(result){
…
}
});
2、Controller方法:
@Controller
@RequestMapping(value = "/user")
public class UserController(){
@RequestMapping(value = "/index/add", method = RequestMethod.POST)
@ResponseBody
public ReturnMsg addOrEdit(@RequestBody List<User> userList) {
…
}
}
eg3:接收List<Map<String,Object>>集合引數
1、js程式碼
var userList = new Array();
userList.push({name: "張三",pwd: "123"});
userList.push({name: "李四",pwd: "223"});
$.ajax({
type: "POST",
url: "${base.contextPath}/user/index/add",
data: JSON.stringify(userList),//將物件序列化成JSON字串
dataType:"json",
contentType : 'application/json;charset=utf-8', //設定請求頭資訊
success: function(result){
…
},
error: function(result){
…
}
});
2、Controller方法:
@Controller
@RequestMapping(value = "/user")
public class UserController(){
@RequestMapping(value = "/index/add", method = RequestMethod.POST)
@ResponseBody
public ReturnMsg addOrEdit(@RequestBody List<Map<String,Object>> listMap) {
…
}
}
eg4:User實體類
1、js程式碼
var userArray= new Array();
userArray.push({name: "張三",pwd: "123"});
userArray.push({name: "李四",pwd: "223"});
var user = {};
user.name = "王五";
user.pwd = "888";
user.userList= userArray;
$.ajax({
type: "POST",
url: "${base.contextPath}/user/index/add",
data: JSON.stringify(user),//將物件序列化成JSON字串
dataType:"json",
contentType : 'application/json;charset=utf-8', //設定請求頭資訊
success: function(result){
…
},
error: function(result){
…
}
});
2、Controller方法:
@Controller
@RequestMapping(value = "/user")
public class UserController(){
@RequestMapping(value = "/index/add", method = RequestMethod.POST)
@ResponseBody
public ReturnMsg addOrEdit(@RequestBody User user) {
List<User> userList= user.getUserList();