SpringMVC接收復雜集合引數【轉載】
阿新 • • 發佈:2019-02-10
宣告:本部落格轉載於博主“jxd_zxf”的部落格,原文章連結:http://jxd-zxf.iteye.com/blog/2072300/
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,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,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。以下列舉接收List<String>、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:
- 接收List<String>集合引數:
1、頁面js程式碼:
Js程式碼- var idList = new Array();
- idList.push(“1”);
- idList.push(“2”);
- idList.push(“3”);
- var isBatch = false;
- $.ajax({
- type: "POST",
- url: "<%=path%>/catalog.do?fn=deleteCatalogSchemes",
- dataType: 'json',
- data: {"idList":idList,"isBatch":isBatch},
- success: function(data){
- …
- },
- error: function(res){
- …
- }
- });
2、Controller方法:
Java程式碼- @Controller
- @RequestMapping("/catalog.do")
- public class CatalogController {
- @RequestMapping(params = "fn=deleteCatalogSchemes")
- @ResponseBody
- public AjaxJson deleteCatalogSchemes(@RequestParam("idList[]") List<String> idList,Boolean isBatch) {
- …
- }
- }
- 接收List<User>、User[]集合引數:
1、User實體類:
Java程式碼- public class User {
- private String name;
- private String pwd;
- //省略getter/setter
- }
2、頁面js程式碼:
Js程式碼- var userList = new Array();
- userList.push({name: "李四",pwd: "123"});
- userList.push({name: "張三",pwd: "332"});
- $.ajax({
- type: "POST",
- url: "<%=path%>/catalog.do?fn=saveUsers",
- 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(data){
- …
- },
- error: function(res){
- …
- }
- });
3、Controller方法:
Java程式碼- @Controller
- @RequestMapping("/catalog.do")
- public class CatalogController {
- @RequestMapping(params = "fn=saveUsers")
- @ResponseBody
- public AjaxJson saveUsers(@RequestBody List<User> userList) {
- …
- }
- }
如果想要接收User[]陣列,只需要把saveUsers的引數型別改為@RequestBody User[] userArray就行了。
- 接收List<Map<String,Object>>集合引數:
1、頁面js程式碼(不需要User物件了):
Js程式碼- var userList = new Array();
- userList.push({name: "李四",pwd: "123"});
- userList.push({name: "張三",pwd: "332"});
- $.ajax({
- type: "POST",
- url: "<%=path%>/catalog.do?fn=saveUsers",
- 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(data){
- …
- },
- error: function(res){
- …
- }
- });
2、Controller方法:
Java程式碼- @Controller
- @RequestMapping("/catalog.do")
- public class CatalogController {
- @RequestMapping(params = "fn=saveUsers")
- @ResponseBody
- public AjaxJson saveUsers(@RequestBody List<Map<String,Object>> listMap) {
- …
- }
- }
- 接收User(bean裡面包含List)集合引數:
1、User實體類:
Java程式碼- public class User {
- private String name;
- private String pwd;
- private List<User> customers;//屬於使用者的客戶群
- //省略getter/setter
- }
2、頁面js程式碼:
Js程式碼- var customerArray = new Array();
- customerArray.push({name: "李四",pwd: "123"});
- customerArray.push({name: "張三",pwd: "332"});
- var user = {};
- user.name = "李剛";
- user.pwd = "888";
- user. customers = customerArray;
- $.ajax({
- type: "POST",
- url: "<%=path%>/catalog.do?fn=saveUsers",
- 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(data){
- …
- },
- error: function(res){
- …
- }
- });
3、Controller方法:
Java程式碼- @Controller
- @RequestMapping("/catalog.do")
- public class CatalogController {
- @RequestMapping(params = "fn=saveUsers")
- @ResponseBody
- public AjaxJson saveUsers(@RequestBody User user) {
- List<User> customers = user.getCustomers();
- …
- }
- }