**前言：**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、List、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：

1. 接收List集合引數：
   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){  
        …  
    }  
});  
 

controller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) {  
            …  
    }  
}  
 

2. 接收List、User[]集合引數：
   實體類
   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){  
        …  
    }  
});  

controller

@Controller  
@RequestMapping("/catalog.do")  
public class CatalogController {  
  
    @RequestMapping(params = "fn=saveUsers")  
    @ResponseBody  
    public AjaxJson saveUsers(@RequestBody List<User> userList) {  
        …  
    }  
}  

3. 接收List<Map<String,Object>>集合引數

頁面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){  
        …  
    }  
});  

controller

@Controller  
@RequestMapping("/catalog.do")  
public class CatalogController {  
  
    @RequestMapping(params = "fn=saveUsers")  
    @ResponseBody  
    public AjaxJson saveUsers(@RequestBody List<Map<String,Object>> listMap) {  
        …  
    }  
}  

4. 接收User(bean裡面包含List)集合引數
   js頁面

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){  
        …  
    }  
});  

controller

@Controller  
@RequestMapping("/catalog.do")  
public class CatalogController {  
  
    @RequestMapping(params = "fn=saveUsers")  
    @ResponseBody  
    public AjaxJson saveUsers(@RequestBody User user) {  
        List<User> customers = user.getCustomers();  
        …  
    }  
}