Ajax 垮域（struts2+ajax+jquery autocomplete）

 

 

方式一

 

	
		$.getJSON(OSL_SEARCH+"/search/doHotwords4Other.html?jsoncallback=?",function(json){   
			alert(json);
			//要求远程请求页面的数据格式为： ?(json_data) 
				
		});  

 

 

 

 

方式二

 

 

	$.ajax( {
		type:'GET',  
			url : OSL_SEARCH+"/search/doHotwords4Other.html",
		  dataType:'jsonp',  
          jsonp: 'jsoncallback', //默认callback  
		error : function() {
			alert("Error");
		},

		success : function(data) {
				alert(data);
		}
	});

 

 

方式三 

 

在Jquery AutoComplete中：

 

$("#searchHome").autocomplete(OSL_SEARCH+"/search/doSubCat4Other.html?jsoncallback=?",{
	minChars : 0,
	selectFirst:false,
	scroll : false,
	dataType:'jsonp', 
    jsonp: 'jsoncallback',
	extraParams:{param:function(){return shMainType;}},
		parse: function(data) {
			return $.map(data, function(row) {
				return {
					data: row,
					value: row[1],
					result: row[1]
				};
			});
		},
		formatItem: function(row, i, max) {
			return row[1];
		},
		formatMatch : function(e, d, c) {
			return e[1];
		},
		formatResult : function(row) {
			return row[1];
		}
	}
);

 

 

 

 

后台struts 代码demo

 

 

import java.io.IOException;
import java.io.PrintWriter;

import org.apache.struts2.ServletActionContext;
import org.json.simple.JSONObject;

import com.opensymphony.xwork2.ActionSupport;

public class TestAction extends ActionSupport {
	
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	
	private JSONObject json; 
		public void doAjax(){
			System.out.println("come here doAjax");
			json = new JSONObject();
			json.put("D_A", "THomas trest");
			 String callback = ServletActionContext.getRequest().getParameter("jsoncallback");     
	           
		try {
			PrintWriter out = 	ServletActionContext.getResponse().getWriter();
			out.print(callback+"("+json+")");
			out.flush();
			
		} catch (IOException e) {
			e.printStackTrace();
		}
			
		}
		public JSONObject getJson() {
			return json;
		}
		public void setJson(JSONObject json) {
			this.json = json;
		}

}