Question

前台ajax中的data数据既有数组又有字符串controller层怎么接收

Answer 1

//service interface
void receiveData(Map<String, Object> map);

//service impl
public void receiveData(Map<String, Object> map) {
System.out.print(map.get("msg"));
}

//action
private Dao dao;

public void sayHello() {
String msg = ServletActionContext.getParameter("msg");
Map<String, Object> map = new HashMap<String, Object>();
map.put("msg", msg);
dao.receiveDate(map);
}

//ajax
$.post("/zhidao/answer.htm",{"msg" : "hello"},function(){});