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Spring MVC在接收集合請求參數(shù)時,需要在Controller方法的集合參數(shù)里前添加@RequestBody,而@RequestBody默認接收的enctype (MIME編碼)是application/json,因此發(fā)送POST請求時需要設置請求報文頭信息,否則Spring MVC在解析集合請求參數(shù)時不會自動的轉換成JSON數(shù)據(jù)再解析成相應的集合。
以下列舉接收List<String>、List<User>、List<Map<String,Object>>、User[]、User(bean里面包含List)幾種較為復雜的集合參數(shù)示例:
接收List<String>集合參數(shù):
1、頁面js代碼:
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[]集合參數(shù):
1、User實體類:
public class User { private String name; private String pwd; //省略getter/setter }
2、頁面js代碼:
var userList = new Array(); userList.push({name: "李四",pwd: "123"}); userList.push({name: "張三",pwd: "332"}); $.ajax({ type: "POST", url: "<%=path%>/catalog.do?fn=saveUsers", data: JSON.stringify(userList),//將對象序列化成JSON字符串 dataType:"json", contentType : 'application/json;charset=utf-8', //設置請求頭信息 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[]數(shù)組,只需要把saveUsers的參數(shù)類型改為@RequestBody User[] userArray就行了。
接收List<Map<String,Object>>集合參數(shù):
1、頁面js代碼(不需要User對象了):
var userList = new Array(); userList.push({name: "李四",pwd: "123"}); userList.push({name: "張三",pwd: "332"}); $.ajax({ type: "POST", url: "<%=path%>/catalog.do?fn=saveUsers", data: JSON.stringify(userList),//將對象序列化成JSON字符串 dataType:"json", contentType : 'application/json;charset=utf-8', //設置請求頭信息 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)集合參數(shù):
1、User實體類:
public class User { private String name; private String pwd; private List<User> customers;//屬于用戶的客戶群 //省略getter/setter }
2、頁面js代碼:
var customerArray = new Array(); customerArray.push({name: "李四",pwd: "123"}); customerArray.push({name: "張三",pwd: "332"}); var user = {}; user.name = "李剛"; user.pwd = "888"; user. customers = customerArray; $.ajax({ type: "POST", url: "<%=path%>/catalog.do?fn=saveUsers", data: JSON.stringify(user),//將對象序列化成JSON字符串 dataType:"json", contentType : 'application/json;charset=utf-8', //設置請求頭信息 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(); … } }
以上這篇spirngmvc js傳遞復雜json參數(shù)到controller的實例就是小編分享給大家的全部內容了,希望能給大家一個參考,也希望大家多多支持億速云。
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