SpringMVC接收复杂集合参数
2016-03-17 12:21
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Spring MVC在接收集合请求参数时,需要在Controller方法的集合参数里前添加@RequestBody,而@RequestBody默认接收的enctype (MIME编码)是application/json,因此发送POST请求时需要设置请求报文头信息,否则Spring MVC在解析集合请求参数时不会自动的转换成JSON数据再解析成相应的集合。以下列举接收List<String>、List<User>、List<Map<String,Object>>、User[]、User(bean里面包含List)几种较为复杂的集合参数示例:
接收List<String>集合参数:
1、页面js代码:
Js代码
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代码
@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[]集合参数:
1、User实体类:
Java代码
public class User {
private String name;
private String pwd;
//省略getter/setter
}
2、页面js代码:
Js代码
var userList = new Array();
userList.push({name: "李四",pwd: "123"});
userList.push({name: "张三",pwd: "332"});
$.ajax({
type: "POST",
url: "<%=path%>/catalog.do?fn=saveUsers",
data: JSON.stringify(userList),//将对象序列化成JSON字符串
dataType:"json",
contentType : 'application/json;charset=utf-8', //设置请求头信息
success: function(data){
…
},
error: function(res){
…
}
});
3、Controller方法:
Java代码
@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[]数组,只需要把saveUsers的参数类型改为@RequestBody User[] userArray就行了。
接收List<Map<String,Object>>集合参数:
1、页面js代码(不需要User对象了):
Js代码
var userList = new Array();
userList.push({name: "李四",pwd: "123"});
userList.push({name: "张三",pwd: "332"});
$.ajax({
type: "POST",
url: "<%=path%>/catalog.do?fn=saveUsers",
data: JSON.stringify(userList),//将对象序列化成JSON字符串
dataType:"json",
contentType : 'application/json;charset=utf-8', //设置请求头信息
success: function(data){
…
},
error: function(res){
…
}
});
2、Controller方法:
Java代码
@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里面包含List)集合参数:
1、User实体类:
Java代码
public class User {
private String name;
private String pwd;
private List<User> customers;//属于用户的客户群
//省略getter/setter
}
2、页面js代码:
Js代码
var customerArray = new Array();
customerArray.push({name: "李四",pwd: "123"});
customerArray.push({name: "张三",pwd: "332"});
var user = {};
user.name = "李刚";
user.pwd = "888";
user. customers = customerArray;
$.ajax({
type: "POST",
url: "<%=path%>/catalog.do?fn=saveUsers",
data: JSON.stringify(user),//将对象序列化成JSON字符串
dataType:"json",
contentType : 'application/json;charset=utf-8', //设置请求头信息
success: function(data){
…
},
error: function(res){
…
}
});
3、Controller方法:
Java代码
@Controller
@RequestMapping("/catalog.do")
public class CatalogController {
@RequestMapping(params = "fn=saveUsers")
@ResponseBody
public AjaxJson saveUsers(@RequestBody User user) {
List<User> customers = user.getCustomers();
…
}
}
接收List<String>集合参数:
1、页面js代码:
Js代码
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代码
@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[]集合参数:
1、User实体类:
Java代码
public class User {
private String name;
private String pwd;
//省略getter/setter
}
2、页面js代码:
Js代码
var userList = new Array();
userList.push({name: "李四",pwd: "123"});
userList.push({name: "张三",pwd: "332"});
$.ajax({
type: "POST",
url: "<%=path%>/catalog.do?fn=saveUsers",
data: JSON.stringify(userList),//将对象序列化成JSON字符串
dataType:"json",
contentType : 'application/json;charset=utf-8', //设置请求头信息
success: function(data){
…
},
error: function(res){
…
}
});
3、Controller方法:
Java代码
@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[]数组,只需要把saveUsers的参数类型改为@RequestBody User[] userArray就行了。
接收List<Map<String,Object>>集合参数:
1、页面js代码(不需要User对象了):
Js代码
var userList = new Array();
userList.push({name: "李四",pwd: "123"});
userList.push({name: "张三",pwd: "332"});
$.ajax({
type: "POST",
url: "<%=path%>/catalog.do?fn=saveUsers",
data: JSON.stringify(userList),//将对象序列化成JSON字符串
dataType:"json",
contentType : 'application/json;charset=utf-8', //设置请求头信息
success: function(data){
…
},
error: function(res){
…
}
});
2、Controller方法:
Java代码
@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里面包含List)集合参数:
1、User实体类:
Java代码
public class User {
private String name;
private String pwd;
private List<User> customers;//属于用户的客户群
//省略getter/setter
}
2、页面js代码:
Js代码
var customerArray = new Array();
customerArray.push({name: "李四",pwd: "123"});
customerArray.push({name: "张三",pwd: "332"});
var user = {};
user.name = "李刚";
user.pwd = "888";
user. customers = customerArray;
$.ajax({
type: "POST",
url: "<%=path%>/catalog.do?fn=saveUsers",
data: JSON.stringify(user),//将对象序列化成JSON字符串
dataType:"json",
contentType : 'application/json;charset=utf-8', //设置请求头信息
success: function(data){
…
},
error: function(res){
…
}
});
3、Controller方法:
Java代码
@Controller
@RequestMapping("/catalog.do")
public class CatalogController {
@RequestMapping(params = "fn=saveUsers")
@ResponseBody
public AjaxJson saveUsers(@RequestBody User user) {
List<User> customers = user.getCustomers();
…
}
}
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