Java的微信开发中使用XML格式和JSON格式数据的详解及实例

XML微信XML消息model定义：

package cn.wx.server;     import org.dom4j.Document;  import org.dom4j.DocumentException;  import org.dom4j.DocumentHelper;  import org.dom4j.Element;     /**   * @title cn.wx.serverXMLMsg.java   * @todo TODO   * @author lpe234   * @time 2014年5月21日下午2:13:27   */  public class XMLMsg {  //普通消息基本变量   String ToUserName;   String FromUserName;   String CreateTime;   String MsgType;   String Content;   String MsgId;  //事件推送变量   String Event;  //自定义菜单项   String EventKey;          public String getEventKey() {    return EventKey;   }      public void setEventKey(String eventKey) {    EventKey = eventKey;   }      public XMLMsg(String str) throws DocumentException {    Document doc = DocumentHelper.parseText(str);    Element root = doc.getRootElement();    this.ToUserName = root.elementText("ToUserName");    this.FromUserName = root.elementText("FromUserName");    this.CreateTime = root.elementText("CreateTime");    this.MsgType = root.elementText("MsgType");    this.Content = root.elementText("Content");    this.MsgId = root.elementText("MsgId");         this.Event = root.elementText("Event");    this.EventKey = root.elementText("EventKey");   }      public String getEvent() {    return Event;   }      public void setEvent(String event) {    Event = event;   }      public String getToUserName() {    return ToUserName;   }      public void setToUserName(String toUserName) {    ToUserName = toUserName;   }      public String getFromUserName() {    return FromUserName;   }      public void setFromUserName(String fromUserName) {    FromUserName = fromUserName;   }      public String getCreateTime() {    return CreateTime;   }      public void setCreateTime(String createTime) {    CreateTime = createTime;   }      public String getMsgType() {    return MsgType;   }      public void setMsgType(String msgType) {    MsgType = msgType;   }      public String getContent() {    return Content;   }      public void setContent(String content) {    Content = content;   }      public String getMsgId() {    return MsgId;   }      public void setMsgId(String msgId) {    MsgId = msgId;   }  }

JSON这里我们使用json-lib，注意一下需要以下几个jar包的支持：

• json-lib-2.4-jdk15.jar

• commons-logging-1.1.3.jar

• ezmorph-1.0.6.jar

• commons-lang-2.4.jar

• commons-collections.jar

• commons-beanutils-1.8.0.jar

以下是简单的AccessToken类，返回String类型的access_token

package cn.wx.server;     import java.io.BufferedReader;  import java.io.IOException;  import java.io.InputStreamReader;  import java.net.MalformedURLException;  import java.net.URL;  import java.net.URLConnection;     import net.sf.json.JSONObject;     public class AccessToken {      /**    * 根据注册信息，获得的参数，提交get请求，获得accessTkoen    * @author lpe234    * @time 2014-5-21 00:52:15    */   String appID = "XXXXXXXXXXXXXX";   String appsecret = "XXXXXXXXXXXXXXXXX";//微信服务号或者申请测试账号的订阅号才有。。。   String preUrl = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=%s&secret=%s";   String tempUrl = String.format(preUrl, appID, appsecret);  /** 测试  * public static void main(String[] args) {  *  AccessToken as = new AccessToken();  *  System.out.println(as.get());  * }  */   //返回String类型access_token   public String get() {    String temp = null;    temp = getJSON();    JSONObject j = JSONObject.fromObject(temp);    temp = j.getString("access_token");    //System.out.println(temp);    return temp;   }      // 获取wx服务器返回JSON数据,private内部调用   private String getJSON() {    String temp = null;    try {     URL url = new URL(tempUrl);     URLConnection conn = url.openConnection();     InputStreamReader isr = new InputStreamReader(conn.getInputStream());     BufferedReader br = new BufferedReader(isr);     temp = br.readLine();    } catch (MalformedURLException e) {     // TODO Auto-generated catch block     e.printStackTrace();    } catch (IOException e) {     // TODO Auto-generated catch block     e.printStackTrace();    }    //System.out.println(temp);    return temp;   }  }

额 大体就是这样

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