本文目錄一覽：
java微信支付官方demo怎麼使用
要使用此功能，用戶只需在微信中關聯一張銀行卡，並完成身份認證，即可將裝有app的智能手機變成一個全能錢包，之後即可購買合作商戶的商品及服務，在付費時只需在自己的智能手機上輸入密碼，無需任何刷卡步驟即可完成整個過程且簡便流暢。
目前，微信支付已實現多種支付方式，並提供多種營銷新工具，滿足用戶及商戶的不同場景。
求java微信下載地址？
關鍵是現在騰訊官方只推出了3個平台的微信
Apple平台
Android平台
Symbian平台
JAVA平台的還沒有，因為手機JAVA平台不支持後台運行，所以沒可能開發出來
如何使用微信sdk java版
1.首先我們新建一個Java開發包WeiXinSDK
2.包路徑：com.ansitech.weixin.sdk
測試的前提條件：
假如我的公眾賬號微信號為：vzhanqun
我的伺服器地址為：
下面我們需要新建一個URL的請求地址
我們新建一個Servlet來驗證URL的真實性，具體介面參考
接入指南
3.新建com.ansitech.weixin.sdk.WeixinUrlFilter.java
這裡我們主要是獲取微信伺服器法師的驗證信息，具體驗證代碼如下
[java] view plain copy print?
package com.ansitech.weixin.sdk;
import com.ansitech.weixin.sdk.util.SHA1;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class WeixinUrlFilter implements Filter {
//這個Token是給微信開發者接入時填的
//可以是任意英文字母或數字，長度為3-32字元
private static String Token = “vzhanqun1234567890”;
@Override
public void init(FilterConfig config) throws ServletException {
System.out.println(“WeixinUrlFilter啟動成功!”);
}
@Override
public void doFilter(ServletRequest req, ServletResponse res,
FilterChain chain) throws IOException, ServletException {
HttpServletRequest request = (HttpServletRequest) req;
HttpServletResponse response = (HttpServletResponse) res;
//微信伺服器將發送GET請求到填寫的URL上,這裡需要判定是否為GET請求
boolean isGet = request.getMethod().toLowerCase().equals(“get”);
System.out.println(“獲得微信請求:” + request.getMethod() + ” 方式”);
if (isGet) {
//驗證URL真實性
String signature = request.getParameter(“signature”);// 微信加密簽名
String timestamp = request.getParameter(“timestamp”);// 時間戳
String nonce = request.getParameter(“nonce”);// 隨機數
String echostr = request.getParameter(“echostr”);//隨機字元串
ListString params = new ArrayListString();
params.add(Token);
params.add(timestamp);
params.add(nonce);
//1. 將token、timestamp、nonce三個參數進行字典序排序
Collections.sort(params, new ComparatorString() {
@Override
public int compare(String o1, String o2) {
return o1.compareTo(o2);
}
});
//2. 將三個參數字元串拼接成一個字元串進行sha1加密
String temp = SHA1.encode(params.get(0) + params.get(1) + params.get(2));
if (temp.equals(signature)) {
response.getWriter().write(echostr);
}
} else {
//處理接收消息
}
}
@Override
public void destroy() {
}
}
好了，不過這裡有個SHA1演算法，我這裡也把SHA1演算法的源碼給貼出來吧！
4.新建com.ansitech.weixin.sdk.util.SHA1.java
[java] view plain copy print?
/*
* 微信公眾平台(JAVA) SDK
*
* Copyright (c) 2014, Ansitech Network Technology Co.,Ltd All rights reserved.
*
*
* Licensed under the Apache License, Version 2.0 (the “License”);
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an “AS IS” BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.ansitech.weixin.sdk.util;
import java.security.MessageDigest;
/**
* pTitle: SHA1演算法/p
*
* @author qsyangyangqisheng274@163.com
*/
public final class SHA1 {
private static final char[] HEX_DIGITS = {‘0’, ‘1’, ‘2’, ‘3’, ‘4’, ‘5’,
‘6’, ‘7’, ‘8’, ‘9’, ‘a’, ‘b’, ‘c’, ‘d’, ‘e’, ‘f’};
/**
* Takes the raw bytes from the digest and formats them correct.
*
* @param bytes the raw bytes from the digest.
* @return the formatted bytes.
*/
private static String getFormattedText(byte[] bytes) {
int len = bytes.length;
StringBuilder buf = new StringBuilder(len * 2);
// 把密文轉換成十六進位的字元串形式
for (int j = 0; j len; j++) {
buf.append(HEX_DIGITS[(bytes[j] 4) 0x0f]);
buf.append(HEX_DIGITS[bytes[j] 0x0f]);
}
return buf.toString();
}
public static String encode(String str) {
if (str == null) {
return null;
}
try {
MessageDigest messageDigest = MessageDigest.getInstance(“SHA1”);
messageDigest.update(str.getBytes());
return getFormattedText(messageDigest.digest());
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}
5.把這個Servlet配置到web.xml中
[html] view plain copy print?
filter
description微信消息接入介面/description
filter-nameWeixinUrlFilter/filter-name
filter-classcom.ansitech.weixin.sdk.WeixinUrlFilter/filter-class
/filter
filter-mapping
filter-nameWeixinUrlFilter/filter-name
url-pattern/api/vzhanqun/url-pattern
/filter-mapping
好了，接入的開發代碼已經完成。
6.下面就把地址URL和密鑰Token填入到微信申請成為開發者模式中吧。
如何用java開發微信
說明：
本次的教程主要是對微信公眾平台開發者模式的講解，網路上很多類似文章，但很多都讓初學微信開發的人一頭霧水，所以總結自己的微信開發經驗，將微信開發的整個過程系統的列出，並對主要代碼進行講解分析，讓初學者儘快上手。
在閱讀本文之前，應對微信公眾平台的官方開發文檔有所了解，知道接收和發送的都是xml格式的數據。另外，在做內容回復時用到了圖靈機器人的api介面，這是一個自然語言解析的開放平台，可以幫我們解決整個微信開發過程中最困難的問題，此處不多講，下面會有其詳細的調用方式。
1.1 在登錄微信官方平台之後，開啟開發者模式，此時需要我們填寫url和token，所謂url就是我們自己伺服器的介面，用WechatServlet.java來實現，相關解釋已經在注釋中說明，代碼如下：
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package demo.servlet;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import demo.process.WechatProcess;
/**
* 微信服務端收發消息介面
*
* @author pamchen-1
*
*/
public class WechatServlet extends HttpServlet {
/**
* The doGet method of the servlet. br
*
* This method is called when a form has its tag value method equals to get.
*
* @param request
* the request send by the client to the server
* @param response
* the response send by the server to the client
* @throws ServletException
* if an error occurred
* @throws IOException
* if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.setCharacterEncoding(“UTF-8”);
response.setCharacterEncoding(“UTF-8”);
/** 讀取接收到的xml消息 */
StringBuffer sb = new StringBuffer();
InputStream is = request.getInputStream();
InputStreamReader isr = new InputStreamReader(is, “UTF-8”);
BufferedReader br = new BufferedReader(isr);
String s = “”;
while ((s = br.readLine()) != null) {
sb.append(s);
}
String xml = sb.toString(); //次即為接收到微信端發送過來的xml數據
String result = “”;
/** 判斷是否是微信接入激活驗證，只有首次接入驗證時才會收到echostr參數，此時需要把它直接返回 */
String echostr = request.getParameter(“echostr”);
if (echostr != null echostr.length() 1) {
result = echostr;
} else {
//正常的微信處理流程
result = new WechatProcess().processWechatMag(xml);
}
try {
OutputStream os = response.getOutputStream();
os.write(result.getBytes(“UTF-8”));
os.flush();
os.close();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* The doPost method of the servlet. br
*
* This method is called when a form has its tag value method equals to
* post.
*
* @param request
* the request send by the client to the server
* @param response
* the response send by the server to the client
* @throws ServletException
* if an error occurred
* @throws IOException
* if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
}
1.2 相應的web.xml配置信息如下，在生成WechatServlet.java的同時，可自動生成web.xml中的配置。前面所提到的url處可以填寫例如：http;//伺服器地址/項目名/wechat.do
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?xml version=”1.0″ encoding=”UTF-8″?
web-app version=”2.5″
xmlns=””
xmlns:xsi=””
xsi:schemaLocation=”
“
servlet
descriptionThis is the description of my J2EE component/description
display-nameThis is the display name of my J2EE component/display-name
servlet-nameWechatServlet/servlet-name
servlet-classdemo.servlet.WechatServlet/servlet-class
/servlet
servlet-mapping
servlet-nameWechatServlet/servlet-name
url-pattern/wechat.do/url-pattern
/servlet-mapping
welcome-file-list
welcome-fileindex.jsp/welcome-file
/welcome-file-list
/web-app
1.3 通過以上代碼，我們已經實現了微信公眾平台開發的框架，即開通開發者模式並成功接入、接收消息和發送消息這三個步驟。
下面就講解其核心部分——解析接收到的xml數據，並以文本類消息為例，通過圖靈機器人api介面實現智能回復。
2.1 首先看一下整體流程處理代碼，包括：xml數據處理、調用圖靈api、封裝返回的xml數據。
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package demo.process;
import java.util.Date;
import demo.entity.ReceiveXmlEntity;
/**
* 微信xml消息處理流程邏輯類
* @author pamchen-1
*
*/
public class WechatProcess {
/**
* 解析處理xml、獲取智能回復結果（通過圖靈機器人api介面）
* @param xml 接收到的微信數據
* @return 最終的解析結果（xml格式數據）
*/
public String processWechatMag(String xml){
/** 解析xml數據 */
ReceiveXmlEntity xmlEntity = new ReceiveXmlProcess().getMsgEntity(xml);
/** 以文本消息為例，調用圖靈機器人api介面，獲取回復內容 */
String result = “”;
if(“text”.endsWith(xmlEntity.getMsgType())){
result = new TulingApiProcess().getTulingResult(xmlEntity.getContent());
}
/** 此時，如果用戶輸入的是「你好」，在經過上面的過程之後，result為「你也好」類似的內容
* 因為最終回復給微信的也是xml格式的數據，所有需要將其封裝為文本類型返回消息
* */
result = new FormatXmlProcess().formatXmlAnswer(xmlEntity.getFromUserName(), xmlEntity.getToUserName(), result);
return result;
}
}
2.2 解析接收到的xml數據，此處有兩個類，ReceiveXmlEntity.java和ReceiveXmlProcess.java，通過反射的機制動態調用實體類中的set方法，可以避免很多重複的判斷，提高代碼效率，代碼如下：
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package demo.entity;
/**
* 接收到的微信xml實體類
* @author pamchen-1
*
*/
public class ReceiveXmlEntity {
private String ToUserName=””;
private String FromUserName=””;
private String CreateTime=””;
private String MsgType=””;
private String MsgId=””;
private String Event=””;
private String EventKey=””;
private String Ticket=””;
private String Latitude=””;
private String Longitude=””;
private String Precision=””;
private String PicUrl=””;
private String MediaId=””;
private String Title=””;
private String Description=””;
private String Url=””;
private String Location_X=””;
private String Location_Y=””;
private String Scale=””;
private String Label=””;
private String Content=””;
private String Format=””;
private String Recognition=””;
public String getRecognition() {
return Recognition;
}
public void setRecognition(String recognition) {
Recognition = recognition;
}
public String getFormat() {
return Format;
}
public void setFormat(String format) {
Format = format;
}
public String getContent() {
return Content;
}
public void setContent(String content) {
Content = content;
}
public String getLocation_X() {
return Location_X;
}
public void setLocation_X(String locationX) {
Location_X = locationX;
}
public String getLocation_Y() {
return Location_Y;
}
public void setLocation_Y(String locationY) {
Location_Y = locationY;
}
public String getScale() {
return Scale;
}
public void setScale(String scale) {
Scale = scale;
}
public String getLabel() {
return Label;
}
public void setLabel(String label) {
Label = label;
}
public String getTitle() {
return Title;
}
public void setTitle(String title) {
Title = title;
}
public String getDescription() {
return Description;
}
public void setDescription(String description) {
Description = description;
}
public String getUrl() {
return Url;
}
public void setUrl(String url) {
Url = url;
}
public String getPicUrl() {
return PicUrl;
}
public void setPicUrl(String picUrl) {
PicUrl = picUrl;
}
public String getMediaId() {
return MediaId;
}
public void setMediaId(String mediaId) {
MediaId = mediaId;
}
public String getEventKey() {
return EventKey;
}
public void setEventKey(String eventKey) {
EventKey = eventKey;
}
public String getTicket() {
return Ticket;
}
public void setTicket(String ticket) {
Ticket = ticket;
}
public String getLatitude() {
return Latitude;
}
public void setLatitude(String latitude) {
Latitude = latitude;
}
public String getLongitude() {
return Longitude;
}
public void setLongitude(String longitude) {
Longitude = longitude;
}
public String getPrecision() {
return Precision;
}
public void setPrecision(String precision) {
Precision = precision;
}
public String getEvent() {
return Event;
}
public void setEvent(String event) {
Event = event;
}
public String getMsgId() {
return MsgId;
}
public void setMsgId(String msgId) {
MsgId = msgId;
}
public String getToUserName() {
return ToUserName;
}
public void setToUserName(String toUserName) {
原創文章，作者：小藍，如若轉載，請註明出處：https://www.506064.com/zh-tw/n/294164.html
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