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新建一个web项目，我用的是eclipse和tomcat7.0 ，外网环境用的nat123
先建立一个实体bean:TextMessage
/**
* xml基本对象
* @author xiaohua
*
*/
public class TextMessage {
private String ToUserName="" ;//开发者微信号
private String FromUserName="";// 发送方帐号（一个OpenID）
private String CreateTime="" ;//消息创建时间 （整型）
private String MsgType="" ;//text
private String Content="" ;//文本消息内容
private String MsgId="" ;//消息id，64位整型
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;
}
}
微信校验工具类：CheckUtil
/**
* 校验工具类
* @author xiaohua
*
*/
public class CheckUtil {
private static final String token="testweixin";
public static boolean checkSignsture(String signature,String timestamp,String nonce){
String[] arra =new String[]{token,timestamp,nonce};
//1排序
Arrays.sort(arra);
//2生成字符串
StringBuffer content = new StringBuffer();
for(int i = 0 ;i<arra.length;i++){
content.append(arra[i]);
}
//3加密
String temp =getSha1(content.toString());
return temp.equals(signature);
}
public static String getSha1(String str){
String s[]= new String[100];
if(str==null || str.length() ==0){
return null;
}
char[] hexDigits={‘0‘,‘1‘,‘2‘,‘3‘,‘4‘,‘5‘,‘6‘,‘7‘,‘8‘,‘9‘,‘a‘,‘b‘,‘c‘,‘d‘,‘e‘,‘f‘};
try {
MessageDigest mdTemp = MessageDigest.getInstance("SHA1");
mdTemp.update(str.getBytes("UTF-8"));
byte[] md = mdTemp.digest();
int j=md.length;
char buf[]=new char[j*2];
int k=0;
for(int i =0;i<j;i++){
byte byte0=md[i];
buf[k++] = hexDigits[byte0>>>4 & 0xf];
buf[k++] = hexDigits[byte0 & 0xf];
}
return new String(buf);
} catch (Exception e) {
return null;
}
}
格式转换 回复内容测试类：MessageUtil
/**
* 格式转换 回复内容测试
* @author xiaohua
*
*/
public class MessageUtil {
public static final String MESSAGE_TEXT="text";//文本类型
public static final String MESSAGE_IMAGE="image";//图像类型
public static final String MESSAGE_VOICE="voice";//声音
public static final String MESSAGE_VIDEO="video";//视频
public static final String MESSAGE_LINK="link";//链接
public static final String MESSAGE_LOCATION="location";//位置
public static final String MESSAGE_EVENT="event";//事件
public static final String MESSAGE_SUBSCRIBE="subscribe";//关注
public static final String MESSAGE_UNSUBSCRIBE="unsubscribe";//取消关注
public static final String MESSAGE_CLICK="click";//取消关注
public static final String MESSAGE_VIEW="view";//取消关注
/**
* 接收的微信格式xml转成map集合
* @param request
* @return
* @throws IOException
* @throws DocumentException
*/
public static Map<String,String> xmlToMap(HttpServletRequest request) throws IOException, DocumentException{
Map<String, String> map = new HashMap<>();
SAXReader reader = new SAXReader();
InputStream ins = request.getInputStream();
Document doc = reader.read(ins);
Element root = doc.getRootElement();
List<Element> list = root.elements();
for(Element el :list){
map.put(el.getName(), el.getText());
}
ins.close();
return map;
}
/**
* 将文本消息对象转换为xml
* @param textMessage
* @return
*/
public static String textMessageToXml(TextMessage textMessage){
XStream xStream = new XStream();
xStream.alias("xml", textMessage.getClass());//替换
return xStream.toXML(textMessage);
}
/**
* 拼接菜单
* @return
*/
public static String menuText(){
StringBuffer bf = new StringBuffer();
bf.append("欢迎你的关注，请按照提示操作:\n\n");
bf.append("1：小安妮的熊的介绍\n");
bf.append("2：小安妮的熊更多详细介绍\n");
bf.append("?：调出此主菜单\n");
return bf.toString();
}
public static String initText(String toUserName,String fromUserName,String content){
TextMessage text = new TextMessage();
text.setToUserName(fromUserName);
text.setFromUserName(toUserName);
text.setCreateTime(dateToStr(new Date()));
text.setMsgType(MessageUtil.MESSAGE_TEXT);
text.setContent(content);
return textMessageToXml(text);
}
/**
* 当回复数字1时
* @return
*/
public static String firstMenu(){
StringBuffer bf = new StringBuffer();
bf.append("你好我是小安妮的熊，我的年龄才3天，因为主人研发出我也就那么三天，以后主人会更高级的研发我的，好爱我的小主人么么哒~");
return bf.toString();
}
/**
* 当回复数字2时
* @return
*/
public static String secondMenu(){
StringBuffer bf = new StringBuffer();
bf.append("哎呀，你怎么一不小心摁了2呢？我才出生三天耶，怎么可能会有那么多的详细资料呀！你很笨的啦~");
return bf.toString();
}
/**
* 日期转换 日期转成String类型
* @param date
* @return
*/
public static String dateToStr(Date date){
SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");
return sdf.format(date);
}
servlet类：WeiXinServlet
public class WeiXinServlet extends HttpServlet {
/**
*
*/
private static final long serialVersionUID = 1L;
private String token="weixintest";
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
String signature= req.getParameter("signature");
String timestamp= req.getParameter("timestamp");
String nonce= req.getParameter("nonce");
String echostr= req.getParameter("echostr");
PrintWriter out = resp.getWriter();
if(true){
out.print(echostr);
}
out.close();
out=null;
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
req.setCharacterEncoding("UTF-8");
resp.setCharacterEncoding("UTF-8");
PrintWriter out = resp.getWriter();
try {
Map<String, String> map = MessageUtil.xmlToMap(req);
String fromUserName = map.get("FromUserName");
String toUserName = map.get("ToUserName");
String createTime = map.get("CreateTime");
String msgType = map.get("MsgType");
String content = map.get("Content");
String msgId = map.get("MsgId");
//判断，如果是文本类型的
String message = null;
System.out.println(msgType+"--");
if(MessageUtil.MESSAGE_TEXT.equals(msgType)){
if("1".equals(content)){
message = MessageUtil.initText(toUserName, fromUserName, MessageUtil.firstMenu());
}else if("2".equals(content)){
message = MessageUtil.initText(toUserName, fromUserName, MessageUtil.secondMenu());
}else if("?".equals(content) || "？".equals(content)){
message = MessageUtil.initText(toUserName, fromUserName, MessageUtil.menuText());
}else{
message ="<xml>"+
"<ToUserName><![CDATA["+fromUserName+"]]></ToUserName>"+
"<FromUserName><![CDATA["+toUserName+"]]></FromUserName>"+
"<CreateTime>2015-09-06</CreateTime>"+
"<MsgType><![CDATA[text]]></MsgType>"+
"<Content><![CDATA[好无语~小主人么么哒还没有开发这个呢！你是猪么，总是碰壁一点都不好玩~]]></Content>"+
"</xml>";
}
/*TextMessage text = new TextMessage();
text.setToUserName(fromUserName);
text.setFromUserName(toUserName);
text.setCreateTime(dateToStr(new Date()));
text.setMsgType("text");
text.setContent("你发的消息是："+content);
message = MessageUtil.textMessageToXml(text);*/
}else if(MessageUtil.MESSAGE_EVENT.equals(msgType)){
String eventType = map.get("Event");//得到事件类型
if(MessageUtil.MESSAGE_SUBSCRIBE.equals(eventType)){//关注
message = MessageUtil.initText(toUserName, fromUserName, MessageUtil.menuText());
}
}
System.out.println(message);
out.print(message);
} catch (DocumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}finally{
out.close();
}
}
/**
* 日期转换 日期转成String类型
* @param date
* @return
*/
public String dateToStr(Date date){
SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");
return sdf.format(date);
}
}
web.xml相关配置：
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>wx</display-name>
<servlet>
<servlet-name>WeiXinServlet</servlet-name>
<servlet-class>**.**.WeiXinServlet</servlet-class><!--设置WeiXinServlet的路径-->
</servlet>
<servlet-mapping>
<servlet-name>WeiXinServlet</servlet-name>
<url-pattern>/do</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
</web-app>
涉及到的jar：
写到这里，差不多就写完了.
目测网上的微信例子有很多，现在我是纯属娱乐自己捣鼓出来的一个，感觉还凑合，目前还在继续发展中，有兴趣的可以添加我的微信公众号：小安妮的熊
好了，先说一下我的步奏吧，我首先是百度了：微信公众号，然后注册一个微信公众号信息，由于纯属个人开发，所以我在注册过程中选择的的个人。想尽一切办法注册后，找到开发者中心，
相关源码和jar下载地址：
http://pan.baidu.com/s/1jG5wMsY 密码：7e7j
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原文地址：http://www.cnblogs.com/1246447850qqcom/p/4786800.html
