微信java介面
❶ 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：http://www.vzhanqun.com/
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
http://mp.weixin.qq.com/wiki/index.php?title=接入指南
3.新建com.ansitech.weixin.sdk.WeixinUrlFilter.java
這里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
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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,這里需要判定是否為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
List<String> params = new ArrayList<String>();
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 Comparator<String>() {
@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，不過這里有個SHA1演算法，我這里也把SHA1演算法的源碼給貼出來吧！
4.新建com.ansitech.weixin.sdk.util.SHA1.java
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/*
* 微信公眾平台(JAVA) SDK
*
* Copyright (c) 2014, Ansitech Network Technology Co.,Ltd All rights reserved.
* http://www.ansitech.com/weixin/sdk/
*
* 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 of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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;
/**
* <p>Title: SHA1演算法</p>
*
* @author qsyang<[email protected]>
*/
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制的字元串形式
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
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<filter>
<description>微信消息接入介面</description>
<filter-name>WeixinUrlFilter</filter-name>
<filter-class>com.ansitech.weixin.sdk.WeixinUrlFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>WeixinUrlFilter</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。
❷ 怎麼用java調用微信支付介面
java調用微信支付介面方法：
RequestHandler requestHandler = new RequestHandler(super.getRequest(),super.getResponse());
//獲取token //兩小時內有效，兩小時後重新獲取
Token = requestHandler.GetToken();
//更新token 到應用中
requestHandler.getTokenReal();
System.out.println("微信支付獲取token=======================:" +Token);
//requestHandler 初始化
requestHandler.init();
requestHandler.init(appid,appsecret, appkey,partnerkey, key);
// --------------------------------本地系統生成訂單-------------------------------------
// 設置package訂單參數
SortedMap<String, String> packageParams = new TreeMap<String, String>();
packageParams.put("bank_type", "WX"); // 支付類型
packageParams.put("body", "xxxx"); // 商品描述
packageParams.put("fee_type", "1"); // 銀行幣種
packageParams.put("input_charset", "UTF-8"); // 字元集
packageParams.put("notify_url", "http://xxxx.com/xxxx/wxcallback"); // 通知地址 這里的通知地址使用外網地址測試，注意80埠是否打開。
packageParams.put("out_trade_no", no); // 商戶訂單號
packageParams.put("partner", partenerid); // 設置商戶號
packageParams.put("spbill_create_ip", super.getRequest().getRemoteHost()); // 訂單生成的機器IP，指用戶瀏覽器端IP
packageParams.put("total_fee", String.valueOf(rstotal)); // 商品總金額,以分為單位
// 設置支付參數
SortedMap<String, String> signParams = new TreeMap<String, String>();
signParams.put("appid", appid);
signParams.put("noncestr", noncestr);
signParams.put("traceid", PropertiesUtils.getOrderNO());
signParams.put("timestamp", timestamp);
signParams.put("package", packageValue);
signParams.put("appkey", this.appkey);
// 生成支付簽名，要採用URLENCODER的原始值進行SHA1演算法！
String sign ="";
try {
sign = Sha1Util.createSHA1Sign(signParams);
} catch (Exception e) {
e.printStackTrace();
}
// 增加非參與簽名的額外參數
signParams.put("sign_method", "sha1");
signParams.put("app_signature", sign);
// api支付拼包結束------------------------------------
//獲取prepayid
String prepayid = requestHandler.sendPrepay(signParams);
System.out.println("prepayid :" + prepayid);
// --------------------------------生成完成---------------------------------------------
//生成預付快訂單完成，返回給android,ios 掉起微信所需要的參數。
SortedMap<String, String> payParams = new TreeMap<String, String>();
payParams.put("appid", appid);
payParams.put("noncestr", noncestr);
payParams.put("package", "Sign=WXPay");
payParams.put("partnerid", partenerid);
payParams.put("prepayid", prepayid);
payParams.put("appkey", this.appkey);
//這里除1000 是因為參數長度限制。
int time = (int) (System.currentTimeMillis() / 1000);
payParams.put("timestamp",String.valueOf(time));
System.out.println("timestamp:" + time);
//簽名
String paysign ="";
try {
paysign = Sha1Util.createSHA1Sign(payParams);
} catch (Exception e) {
e.printStackTrace();
}
payParams.put("sign", paysign);
//拼json 數據返回給客戶端
BasicDBObject backObject = new BasicDBObject();
backObject.put("appid", appid);
backObject.put("noncestr", payParams.get("noncestr"));
backObject.put("package", "Sign=WXPay");
backObject.put("partnerid", payParams.get("partnerid"));
backObject.put("prepayid", payParams.get("prepayid"));
backObject.put("appkey", this.appkey);
backObject.put("timestamp",payParams.get("timestamp"));
backObject.put("sign",payParams.get("sign"));
String backstr = dataObject.toString();
System.out.println("backstr:" + backstr);
return backstr;
====================到此為止，預付款訂單已生成，並且已返回客戶端====================
//坐等微信伺服器通知，通知的地址就是生成預付款訂單的notify_url
ResponseHandler resHandler = new ResponseHandler(request, response);
resHandler.setKey(partnerkey);
//創建請求對象
//RequestHandler queryReq = new RequestHandler(request, response);
//queryReq.init();
if (resHandler.isTenpaySign() == true) {
//商戶訂單號
String out_trade_no = resHandler.getParameter("out_trade_no");
System.out.println("out_trade_no:" + out_trade_no);
//財付通訂單號
String transaction_id = resHandler.getParameter("transaction_id");
System.out.println("transaction_id:" + transaction_id);
//金額,以分為單位
String total_fee = resHandler.getParameter("total_fee");
//如果有使用折扣券，discount有值，total_fee+discount=原請求的total_fee
String discount = resHandler.getParameter("discount");
//支付結果
String trade_state = resHandler.getParameter("trade_state");
//判斷簽名及結果
if ("0".equals(trade_state)) {
//------------------------------
//即時到賬處理業務開始
//------------------------------
System.out.println("----------------業務邏輯執行-----------------");
//——請根據您的業務邏輯來編寫程序（以上代碼僅作參考）——
System.out.println("----------------業務邏輯執行完畢-----------------");
System.out.println("success"); // 請不要修改或刪除
System.out.println("即時到賬支付成功");
//給財付通系統發送成功信息，財付通系統收到此結果後不再進行後續通知
resHandler.sendToCFT("success");
//給微信伺服器返回success 否則30分鍾通知8次
return "success";
}else{
System.out.println("通知簽名驗證失敗");
resHandler.sendToCFT("fail");
response.setCharacterEncoding("utf-8");
}
}else {
System.out.println("fail -Md5 failed");
❸ 怎麼用java調用微信支付介面
java調用微信支付介面方法：x0d=newRequestHandler(super.getRequest(),super.getResponse());x0dx0ax0dx0a//獲取備昌token//兩小時內有效，兩小時後重新獲取x0dx0ax0dx0aToken=requestHandler.GetToken();x0dx0ax0dx0a//更新token到應用中x0dx0ax0dx0arequestHandler.getTokenReal();x0dx0ax0dx0aSystem.out.println("微信支付獲取token=======================:"+Token);x0dx0ax0dx0ax0dx0ax0dx0a//requestHandler初始化x0dx0ax0dx0arequestHandler.init();x0dx0ax0dx0arequestHandler.init(appid,appsecret,appkey,partnerkey,key);x0dx0ax0dx0ax0dx0ax0dx0a//--------------------------------本地系統生成訂單-------------------------------------x0dx0ax0dx0a//設置package訂單參數x0dx0ax0dx0aSortedMap
❹ 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，讓初學者盡快上手。
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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packagedemo.servlet;
importjava.io.BufferedReader;
importjava.io.IOException;
importjava.io.InputStream;
importjava.io.InputStreamReader;
importjava.io.OutputStream;
importjavax.servlet.ServletException;
importjavax.servlet.http.HttpServlet;
importjavax.servlet.http.HttpServletRequest;
importjavax.servlet.http.HttpServletResponse;
importdemo.process.WechatProcess;
/**
*微信服務端收發消息介面
*
*@authorpamchen-1
*
*/
{
/**
*ThedoGetmethodoftheservlet.<br>
*
*.
*
*@paramrequest
*
*@paramresponse
*
*@throwsServletException
*ifanerroroccurred
*@throwsIOException
*ifanerroroccurred
*/
publicvoiddoGet(HttpServletRequestrequest,HttpServletResponseresponse)
throwsServletException,IOException{
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
/**讀取接收到的xml消息*/
StringBuffersb=newStringBuffer();
InputStreamis=request.getInputStream();
InputStreamReaderisr=newInputStreamReader(is,"UTF-8");
BufferedReaderbr=newBufferedReader(isr);
Strings="";
while((s=br.readLine())!=null){
sb.append(s);
}
Stringxml=sb.toString();//次即為接收到微信端發送過來的xml數據
Stringresult="";
/**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*/
Stringechostr=request.getParameter("echostr");
if(echostr!=null&&echostr.length()>1){
result=echostr;
}else{
//正常的微信處理流程
result=newWechatProcess().processWechatMag(xml);
}
try{
OutputStreamos=response.getOutputStream();
os.write(result.getBytes("UTF-8"));
os.flush();
os.close();
}catch(Exceptione){
e.printStackTrace();
}
}
/**
*ThedoPostmethodoftheservlet.<br>
*
*
*post.
*
*@paramrequest
*
*@paramresponse
*
*@throwsServletException
*ifanerroroccurred
*@throwsIOException
*ifanerroroccurred
*/
publicvoiddoPost(HttpServletRequestrequest,HttpServletResponseresponse)
throwsServletException,IOException{
doGet(request,response);
}
}
<?xmlversion="1.0"encoding="UTF-8"?>
<web-appversion="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<servlet>
<description></description>
<display-name></display-name>
<servlet-name>WechatServlet</servlet-name>
<servlet-class>demo.servlet.WechatServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>WechatServlet</servlet-name>
<url-pattern>/wechat.do</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
packagedemo.process;
importjava.util.Date;
importdemo.entity.ReceiveXmlEntity;
/**
*微信xml消息處理流程邏輯類
*@authorpamchen-1
*
*/
publicclassWechatProcess{
/**
*解析處理xml、獲取智能回復結果（通過圖靈機器人api介面）
*@paramxml接收到的微信數據
*@return最終的解析結果（xml格式數據）
*/
publicStringprocessWechatMag(Stringxml){
/**解析xml數據*/
ReceiveXmlEntityxmlEntity=newReceiveXmlProcess().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*/
Stringresult="";
if("text".endsWith(xmlEntity.getMsgType())){
result=newTulingApiProcess().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=newFormatXmlProcess().formatXmlAnswer(xmlEntity.getFromUserName(),xmlEntity.getToUserName(),result);
returnresult;
}
}
packagedemo.entity;
/**
*接收到的微信xml實體類
*@authorpamchen-1
*
*/
publicclassReceiveXmlEntity{
privateStringToUserName="";
privateStringFromUserName="";
privateStringCreateTime="";
privateStringMsgType="";
privateStringMsgId="";
privateStringEvent="";
privateStringEventKey="";
privateStringTicket="";
privateStringLatitude="";
privateStringLongitude="";
privateStringPrecision="";
privateStringPicUrl="";
privateStringMediaId="";
privateStringTitle="";
privateStringDescription="";
privateStringUrl="";
privateStringLocation_X="";
privateStringLocation_Y="";
privateStringScale="";
privateStringLabel="";
privateStringContent="";
privateStringFormat="";
privateStringRecognition="";
publicStringgetRecognition(){
returnRecognition;
}
publicvoidsetRecognition(Stringrecognition){
Recognition=recognition;
}
publicStringgetFormat(){
returnFormat;
}
publicvoidsetFormat(Stringformat){
Format=format;
}
publicStringgetContent(){
returnContent;
}
publicvoidsetContent(Stringcontent){
Content=content;
}
publicStringgetLocation_X(){
returnLocation_X;
}
publicvoidsetLocation_X(StringlocationX){
Location_X=locationX;
}
publicStringgetLocation_Y(){
returnLocation_Y;
}
publicvoidsetLocation_Y(StringlocationY){
Location_Y=locationY;
}
publicStringgetScale(){
returnScale;
}
publicvoidsetScale(Stringscale){
Scale=scale;
}
publicStringgetLabel(){
returnLabel;
}
publicvoidsetLabel(Stringlabel){
Label=label;
}
publicStringgetTitle(){
returnTitle;
}
publicvoidsetTitle(Stringtitle){
Title=title;
}
publicStringgetDescription(){
returnDescription;
}
publicvoidsetDescription(Stringdescription){
Description=description;
}
publicStringgetUrl(){
returnUrl;
}
publicvoidsetUrl(Stringurl){
Url=url;
}
publicStringgetPicUrl(){
returnPicUrl;
}
publicvoidsetPicUrl(StringpicUrl){
PicUrl=picUrl;
}
publicStringgetMediaId(){
returnMediaId;
}
publicvoidsetMediaId(StringmediaId){
MediaId=mediaId;
}
publicStringgetEventKey(){
returnEventKey;
}
publicvoidsetEventKey(StringeventKey){
EventKey=eventKey;
}
publicStringgetTicket(){
returnTicket;
}
publicvoidsetTicket(Stringticket){
Ticket=ticket;
}
publicStringgetLatitude(){
returnLatitude;
}
publicvoidsetLatitude(Stringlatitude){
Latitude=latitude;
}
publicStringgetLongitude(){
returnLongitude;
}
publicvoidsetLongitude(Stringlongitude){
Longitude=longitude;
}
publicStringgetPrecision(){
returnPrecision;
}
publicvoidsetPrecision(Stringprecision){
Precision=precision;
}
publicStringgetEvent(){
returnEvent;
}
publicvoidsetEvent(Stringevent){
Event=event;
}
publicStringgetMsgId(){
returnMsgId;
}
publicvoidsetMsgId(StringmsgId){
MsgId=msgId;
}
publicStringgetToUserName(){
returnToUserName;
}
publicvoidsetToUserName(StringtoUserName){
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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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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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，可以避免很多重復的判斷，提高代碼效率，代碼如下：
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