【第26篇】通过Gson解析微信自定义菜单多个Button的数组数据

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package com.common;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;

/**
 *@Author:jilongliang
 *@Email:jilongliang@sina.com
 *@Date:2014-1-4
 *@CopyRight:liangjilong
 *@Description:
 */
public class FileUtils {
	private static String content = "",line = System
			.getProperty("line.separator");// 换行相当于\n

	public static String reader(File file) {
		FileReader read = null;
		BufferedReader reader = null;
		try {
			read = new FileReader(file);
			reader = new BufferedReader(read);
			StringBuffer buffer = new StringBuffer("");
			content = reader.readLine();
			while (content != null) {
				buffer.append(content).append(line);
				content = reader.readLine();
			}
			return content = buffer.toString();// 返回
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				if (reader != null)
					reader.close();
				if (read != null)
					read.close();
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
		return "";// 没值就返回空
	}
}


package com.entity;

import java.io.Serializable;
import java.util.List;

/**
 *@Author:jilongliang
 *@Email:jilongliang@sina.com
 *@Date:2014-1-4
 *@CopyRight:liangjilong
 *@Description:
 */
public class Button implements Serializable{
	private String name;
	private List<SubButton> sub;
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public List<SubButton> getSub() {
		return sub;
	}
	public void setSub(List<SubButton> sub) {
		this.sub = sub;
	}
	 
}

package com.entity;

import java.io.Serializable;

/**
 *@Author:jilongliang
 *@Email:jilongliang@sina.com
 *@Date:2014-1-4
 *@CopyRight:liangjilong
 *@Description:
 */
public class SubButton implements Serializable{
	private String type;
	private String name;
	private String url;
	private String key;
	public String getType() {
		return type;
	}
	public void setType(String type) {
		this.type = type;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getUrl() {
		return url;
	}
	public void setUrl(String url) {
		this.url = url;
	}
	public String getKey() {
		return key;
	}
	public void setKey(String key) {
		this.key = key;
	}
}

package com.json;

import java.io.File;
import java.net.URL;
import java.util.Iterator;

import com.common.FileUtils;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;

/**
 *@Author:jilongliang
 *@Email:jilongliang@sina.com
 *@Date:2014-1-4
 *@CopyRight:liangjilong
 *@Description:
 */
public class DoJson1 {
	public static void main(String[] args) {
		//读取文件的json数据这样就不会那么容易些字符串那么眼花 O(∩_∩)O哈哈~
		URL URL = DoJson1.class.getClassLoader().getResource("json");
		File file = new File(URL.getFile());
		String jsonText=FileUtils.reader(file);
		
		String responseData=jsonText;
		JsonParser parser = new JsonParser();
		JsonElement jsonEl = parser.parse(responseData);
		JsonObject jsonObjRoot = null;
		if (jsonEl.isJsonObject()) {
			 jsonObjRoot = jsonEl.getAsJsonObject();
			 JsonElement menuEl=jsonObjRoot.get("menu");//menu节点
			 JsonElement buttonEl=menuEl.getAsJsonObject().get("button");//button节点
			 
			 boolean flag=buttonEl.isJsonArray();//是否为Json数组
			 if(flag){
				 JsonArray jsonArray= buttonEl.getAsJsonArray();//转为数组
				 
				 ///////////////最大的Menu节点///////////
				 for(Iterator iter=jsonArray.iterator();iter.hasNext();){
					 
					 JsonObject jop=(JsonObject) iter.next();
					 String name=jop.get("name").getAsString();
					 
					 System.out.println(name);//将最大自定义菜单的Button按钮打印出来
					 
					 ///////////////////sub_button/Begin//////////////
					 
					 JsonElement sub_buttonEl=jop.get("sub_button");//sub_button节点
					 boolean flag1=sub_buttonEl.isJsonArray();//是否为Json数组
					 if(flag1){
						 JsonArray jsonArray1= sub_buttonEl.getAsJsonArray();//转为数组
						 String url="",key="";
						 for (Iterator iterator = jsonArray1.iterator(); iterator.hasNext();) {
								 JsonObject jop1=(JsonObject) iterator.next();
								 String type=jop1.get("type").getAsString();
								 String name1=jop1.get("name").getAsString();
								 
								 //判断这个url的key不是为空的时候就拿出来
							 	if(jop1.has("url")){
							 		  url=jop1.get("url").getAsString();
							 	} else{
									  key=jop1.get("key").getAsString();
								 }
							 	System.out.println(name1+"\t"+type+"\t"+url+"\t"+key+"\n");
							
						}
					 }
				 }
			 }
		}
		
	}
}


package com.json;

import java.io.File;
import java.net.URL;
import java.util.Iterator;

import com.common.FileUtils;
import com.entity.Button;
import com.entity.SubButton;
import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;

/**
 *@Author:jilongliang
 *@Email:jilongliang@sina.com
 *@Date:2014-1-4
 *@CopyRight:liangjilong
 *@Description:
 */
public class DoJson {
	public static void main(String[] args) {
		URL URL = DoJson1.class.getClassLoader().getResource("json.txt");
		File file = new File(URL.getFile());
		String responseData=FileUtils.reader(file);
		
		JsonParser parser = new JsonParser();
		JsonElement jsonEl = parser.parse(responseData);
		
		JsonObject jsonObjRoot = null;
		if (jsonEl.isJsonObject()) {
			 jsonObjRoot = jsonEl.getAsJsonObject();
			 JsonElement menuEl=jsonObjRoot.get("menu");//menu节点
			 JsonElement buttonEl=menuEl.getAsJsonObject().get("button");//button节点
			 boolean flag=buttonEl.isJsonArray();//是否为Json数组
			 if(flag){
				 JsonArray jsonArray= buttonEl.getAsJsonArray();//转为数组
				 
				 ///////////////最大的Menu节点///////////
				 for(Iterator iter=jsonArray.iterator();iter.hasNext();){
					 
					 JsonObject jop=(JsonObject) iter.next();
					 Button b=new Gson().fromJson(jop,Button.class);
					 
					 System.out.println("最大的节点"+b.getName());//将最大自定义菜单的Button按钮打印出来
					 
					 ///////////////////sub_button/Begin//////////////
					 
					 JsonElement sub_buttonEl=jop.get("sub_button");//sub_button节点
					 boolean flag1=sub_buttonEl.isJsonArray();//是否为Json数组
					 if(flag1){
						 JsonArray jsonArray1= sub_buttonEl.getAsJsonArray();//转为数组
						 String url="",key="";
						 for (Iterator iterator = jsonArray1.iterator(); iterator.hasNext();) {
							 
							 JsonObject jop1=(JsonObject) iterator.next();
							 SubButton subButton=new Gson().fromJson(jop1,SubButton.class);//方法二：灵活使用Gson取数据
							//判断这个url的key不是为空的时候就拿出来
							 if(jop1.has("url")){
						 		  url=jop1.get("url").getAsString();
						 	} else{
								  key=jop1.get("key").getAsString();
							 }
							 System.out.println(subButton.getName()+"\t"+subButton.getType()+"\t"+url+"\t"+key+"\n");
						}
					 }
				 }
			 }
		}
	}
}

{"menu":
	{"button":
		[
			{"sub_button":
				[
					{"type":"click","key":"A1","name":"天气预报"},{"type":"click","key":"A2","name":"公交查询"},"key":"A3","name":"地方搜索"},"key":"A4","name":"互译在线"}
				],"name":"生活助手"
			},{"sub_button":
				[
					{"type":"click","key":"B1","name":"音乐点播"},"key":"B2","name":"经典游戏"},"key":"B3","name":"美女电台"},"key":"B4","name":"人脸识别"},"key":"B5","name":"天文星座"}
				],"name":"休闲驿站"
			},"key":"C1","name":"短信服务"},"key":"C2","name":"新闻联播"},"key":"C3","name":"影视在线"},"key":"C4","name":"幽默笑话"},{"type":"view","url":"http://weibo.com/resourceljl","name":"关于我们"}
				],"name":"更多体验"}
		  ]
	}
}




package com.entity;

import java.io.Serializable;
import java.util.List;

/**
 *@Author:jilongliang
 *@Email:jilongliang@sina.com
 *@Date:2014-1-4
 *@CopyRight:liangjilong
 *@Description:
 */

public class Menu implements Serializable{
	private List<Button> Button;

	public List<Button> getButton() {
		return Button;
	}

	public void setButton(List<Button> button) {
		Button = button;
	}
 
}

package com.json;

import java.util.Iterator;

import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;

/**
 *@Author:jilongliang
 *@Email:jilongliang@sina.com
 *@Date:2014-1-4
 *@CopyRight:liangjilong
 *@Description:
 */
public class DoJson2 {
	public static void main(String[] args) {
		StringBuffer buffer=new StringBuffer();
		buffer.append("{\"menu\":");
			buffer.append("{\"button\":");
			buffer.append("[");
			
				buffer.append("{\"name\":\"生活助手\",\"sub_button\":");
				buffer.append("[");
					buffer.append("{\"type\":\"click\",\"name\":\"帮助手册\",\"url\":\"http://me2dorg.duapp.com/common/helper.html\",\"sub_button\":[]},");
					buffer.append("{\"type\":\"click\",\"name\":\"股票财经\",\"key\":\"14\",\"name\":\"短信阅读\",\"key\":\"11\",\"name\":\"短信笑话\",\"key\":\"13\",\"sub_button\":[]}");
					buffer.append("]");
				buffer.append("},");
				
				buffer.append("{\"name\":\"新闻博览\",\"name\":\"新闻阅读\",\"key\":\"10\",");
					buffer.append("{\"type\":\"view\",\"name\":\"在线帮助\",");
				
				buffer.append("{\"name\":\"游戏娱乐\",\"sub_button\":[]}");
					buffer.append("]");
				buffer.append("}");
			buffer.append("]");
			buffer.append("}");
		buffer.append("}");
		
		String responseData=buffer.toString();
		
		JsonParser parser = new JsonParser();
		JsonElement jsonEl = parser.parse(responseData);
		
		JsonObject jsonObjRoot = null;
		if (jsonEl.isJsonObject()) {
			 jsonObjRoot = jsonEl.getAsJsonObject();
			 JsonElement menuEl=jsonObjRoot.get("menu");//menu节点
			 JsonElement buttonEl=menuEl.getAsJsonObject().get("button");//button节点
			 
			 boolean flag=buttonEl.isJsonArray();//是否为Json数组
			 if(flag){
				 JsonArray jsonArray= buttonEl.getAsJsonArray();//转为数组
				 
				 ///////////////最大的Menu节点///////////
				 for(Iterator iter=jsonArray.iterator();iter.hasNext();){
					 
					 JsonObject jop=(JsonObject) iter.next();
					 String name=jop.get("name").getAsString();
					 
					 System.out.println(name);//将最大自定义菜单的Button按钮打印出来
					 
					 
					 ///////////////////sub_button/Begin//////////////
					 
					 JsonElement sub_buttonEl=jop.get("sub_button");//sub_button节点
					 boolean flag1=sub_buttonEl.isJsonArray();//是否为Json数组
					 if(flag1){
						 JsonArray jsonArray1= sub_buttonEl.getAsJsonArray();//转为数组
						 String url="",key="";
						 for (Iterator iterator = jsonArray1.iterator(); iterator.hasNext();) {
								 JsonObject jop1=(JsonObject) iterator.next();
								 String type=jop1.get("type").getAsString();
								 String name1=jop1.get("name").getAsString();
								 
								 //判断这个url的key不是为空的时候就拿出来
							 	if(jop1.has("url")){
							 		  url=jop1.get("url").getAsString();
							 	} else{
									  key=jop1.get("key").getAsString();
								 }
							System.out.println(name1+"\t"+type+"\t"+url+"\t"+key+"\n");
							
						}
					 }
				 }
			 }
		}
		
	}
}
原文链接：https://www.f2er.com/json/289907.html

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