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spirngmvc js传递复杂json参数到controller的实例

程序员文章站 2022-03-14 18:37:45
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 (m...

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:

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:

@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:

public class user { 
  private string name; 
 private string pwd; 
 //省略getter/setter 
} 

2、页面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:

@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):

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:

@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:

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:

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:

@controller 
@requestmapping("/catalog.do") 
public class catalogcontroller { 
 
 @requestmapping(params = "fn=saveusers") 
 @responsebody 
 public ajaxjson saveusers(@requestbody user user) { 
  list<user> customers = user.getcustomers(); 
  … 
 } 
} 

以上这篇spirngmvc js传递复杂json参数到controller的实例就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持。