springmvc接收数组的方式

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方法一：利用ajax，并设置contentType: ‘application/json’ （必须要设置，@RequestBody需要根据这个来确定需要使用jsonHttpMessageCon），后台用@RequestBody接受前台传递的json字符串

--jsp页面function submitFrom1 () {          var list = [];          for (var i = 0 ; i < 3 ; i++) {              var params = {};              params['pkg_id'] = "123_" + i;              params['pkg_name'] = "1234_" + i;              params['pkg_desc'] = "1235_" + i;              list.push(params);          }          $("#jsonParams").val(JSON.stringify(list));          $.ajax ({              type:'post',                 time:20000,                 contentType: 'application/json',                 dateType:'json',                 url:$("#contextPath").val()+'/bigPackage/test.do',                 data:JSON.stringify(list),                 success:function(data){                     alert(data);                 },                 error:function(e){                 }          });      }--controller层：@RequestMapping("test")    @ResponseBody    public String test (@RequestBody BigPackageVO [] vo) {        for (BigPackageVO v : vo) {            String pkg_id = v.getPkg_id();            String pkg_name = v.getPkg_name();            String pkg_desc = v.getPkg_desc() ;            log.info("pkg_id:" + pkg_id + "pkg_name:" + pkg_name + "pkg_desc:" + pkg_desc);        }        return "0" ;    }

方法2：

--jsp页面<form action="<%=basePath%>bigPackage/test1.do" method="post" id="testForm">        <input type="text" name="list[0].username" value="user1"><br/>        <input type="text" name="list[0].password" value="pwd1"><br/>        <input type="text" name="list[1].username" value="user2"><br/>        <input type="text" name="list[1].password" value="pwd2"><br/>        <input type="button" value="submit" onclick="formSubmit();"/>    </form>--controller层：@RequestMapping("test1")    public void test1 (UserModel u) {        List<User> list = u.getList();        for (User user : list) {            log.info(user.getUsername());        }    }--User类public class User {    private String username;    private String password;    public String getUsername() {        return username;    }    public void setUsername(String username) {        this.username = username;    }    public String getPassword() {        return password;    }    public void setPassword(String password) {        this.password = password;    }}--UserModel类public class UserModel {    private List<User> list;    public List<User> getList() {        return list;    }    public void setList(List<User> list) {        this.list = list;    }}

–注意
这里写图片描述

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