Use JS to receive List<String> collection parameters-JS Tutorial-php.cn

Use JS to receive List collection parameters

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Release： 2018-06-13 09:22:20

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This time I will introduce to you the precautions for using JS to receive List collection parameters. What are the precautions for using JS to receive List collection parameters? The following is a practical case, let's take a look.

1. Page js code:

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){ 
  … 
 } 
});

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2. Controller method:

@Controller 
@RequestMapping("/catalog.do") 
public class CatalogController { 
 
 @RequestMapping(params = "fn=deleteCatalogSchemes") 
 @ResponseBody 
 public AjaxJson deleteCatalogSchemes(@RequestParam("idList[]") List<String> idList,Boolean isBatch) { 
   … 
 } 
}

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Receive List, User[] collection parameters:

1, User entity class:

public class User { 
  private String name; 
 private String pwd; 
 //省略getter/setter 
}

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2. Page js code:

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){ 
  … 
 } 
});

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3. Controller method:

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

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If you want to receive the User[] array, you only need to change the parameter type of saveUsers to @RequestBody User[] userArray.

Receive List> collection parameters:

##1. Page js code (User object is not required) :

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){ 
  … 
 } 
});

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2. Controller method:

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

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Receives the User (bean contains List) collection Parameters:

1. User entity class:

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 
}

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2. Page js code:

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){ 
  … 
 } 
});

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3. Controller method:

@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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I believe you have mastered the method after reading the case in this article. Please come for more exciting information. Pay attention to other related articles on php Chinese website!