首页 > 开发 > Java > 正文

SpringMVC接收复杂集合对象(参数)代码示例

2024-07-13 10:14:03
字体:
来源:转载
供稿:网友

SpringMVC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SpringMVC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@RequestBodyUser[]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();     …   } } 

总结

以上就是本文关于SpringMVC接收复杂集合对象(参数)代码示例的全部内容,希望对大家有所帮助


注:相关教程知识阅读请移步到JAVA教程频道。
发表评论 共有条评论
用户名: 密码:
验证码: 匿名发表