SpringMVC接收复杂集合参数

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。

接收List集合参数-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){ … } });

接收List集合参数–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[]集合参数—User实体类

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

接收List、User[]集合参数—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){ … } });

接收List、User[]集合参数—Controller方法

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。

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

接收List

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){ … } });

接收List

@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—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 }

接收User(bean里面包含List)集合参数—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){ … } });

接收User(bean里面包含List)集合参数—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(); … } }

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