微信开发之使用java获取签名signature

一、前言

微信接口调用验证最终需要用到的三个参数noncestr、timestamp、signature：

接下来将会给出获取这三个参数的详细代码

本文使用到的技术HttpClient、Json字符串转map、sha1加密

二、需要用到的jar包

maven依赖的包有：

1、HttpClient包依赖

<dependency><groupid>org.apache.httpcomponents</groupid>httpcore<version>4.4.3</version>
</dependency>
<dependency><groupid>org.apache.httpcomponents</groupid>httpclient<version>4.5.1</version>
</dependency>

2、json转map相关包依赖

<dependency><groupid>net.sf.json-lib</groupid>json-lib<version>2.4</version><classifier>jdk15</classifier>
</dependency>
<dependency><groupid>xom</groupid>xom<version>1.2.5</version>
</dependency>

详细代码

package com.luo.util;import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.UUID;
import net.sf.json.JSONObject;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NamevaluePair;
import org.apache.http.ParseException;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNamevaluePair;
import org.apache.http.protocol.HTTP;
import org.apache.http.util.EntityUtils;public class HttpXmlClient {public static String post(String url, Map<string, string=""> params) {DefaultHttpClient httpclient = new DefaultHttpClient();String body = null;HttpPost post = postForm(url, params);body = invoke(httpclient, post);httpclient.getConnectionManager().shutdown();return body;}public static String get(String url) {DefaultHttpClient httpclient = new DefaultHttpClient();String body = null;HttpGet get = new HttpGet(url);body = invoke(httpclient, get);httpclient.getConnectionManager().shutdown();return body;}private static String invoke(DefaultHttpClient httpclient,HttpUriRequest httpost) {HttpResponse response = sendRequest(httpclient, httpost);String body = paseResponse(response);return body;}private static String paseResponse(HttpResponse response) {HttpEntity entity = response.getEntity();String charset = EntityUtils.getContentCharSet(entity);String body = null;try {body = EntityUtils.toString(entity);} catch (ParseException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return body;}private static HttpResponse sendRequest(DefaultHttpClient httpclient,HttpUriRequest httpost) {HttpResponse response = null;try {response = httpclient.execute(httpost);} catch (ClientProtocolException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return response;}private static HttpPost postForm(String url, Map<string, string=""> params) {HttpPost httpost = new HttpPost(url);List<namevaluepair> nvps = new ArrayList<namevaluepair>();Set<string> keySet = params.keySet();for (String key : keySet) {nvps.add(new BasicNamevaluePair(key, params.get(key)));}try {httpost.setEntity(new UrlEncodedFormEntity(nvps, HTTP.UTF_8));} catch (UnsupportedEncodingException e) {e.printStackTrace();}return httpost;}public static void main(String[] args) {//获取access_tokenMap<string, string=""> params = new HashMap<string, string="">();params.put("corpid","wx5f24fa0db1819ea2");params.put("corpsecret","uQtWzF0bQtl2KRHX0amekjpq8L0aO96LSpSNfctOBLRbuYPO4DUBhMn0_v2jHS-9");String xml = HttpXmlClient.post("https://qyapi.weixin.qq.com/cgi-bin/gettoken",params);JSonObject jsonMap = JSONObject.fromObject(xml);Map<string, string=""> map = new HashMap<string, string="">();Iterator<string> it = jsonMap.keys();while(it.hasNext()) {String key = (String) it.next();String u = jsonMap.get(key).toString();map.put(key, u);}String access_token = map.get("access_token");System.out.println("access_token=" + access_token);//获取ticketparams.put("access_token",access_token);xml = HttpXmlClient.post("https://qyapi.weixin.qq.com/cgi-bin/get_jsapi_ticket",params);jsonMap = JSONObject.fromObject(xml);map = new HashMap<string, string="">();it = jsonMap.keys();while(it.hasNext()) {String key = (String) it.next();String u = jsonMap.get(key).toString();map.put(key, u);}String jsapi_ticket = map.get("ticket");System.out.println("jsapi_ticket=" + jsapi_ticket);//获取签名signatureString noncestr = UUID.randomUUID().toString();String timestamp = Long.toString(System.currentTimeMillis() / 1000);String url="http://mp.weixin.qq.com";String str = "jsapi_ticket=" + jsapi_ticket +"&noncestr=" + noncestr +"×tamp=" + timestamp +"&url=" + url;//sha1加密String signature = SHA1(str);System.out.println("noncestr=" + noncestr);System.out.println("timestamp=" + timestamp);System.out.println("signature=" + signature);//最终获得调用微信js接口验证需要的三个参数noncestr、timestamp、signature}public static String SHA1(String str) {try {MessageDigest digest = java.security.MessageDigest.getInstance("SHA-1"); //如果是SHA加密只需要将"SHA-1"改成"SHA"即可digest.update(str.getBytes());byte messageDigest[] = digest.digest();// Create Hex StringStringBuffer hexStr = new StringBuffer();// 字节数组转换为 十六进制 数for (int i = 0; i < messageDigest.length; i++) {String shaHex = Integer.toHexString(messageDigest[i] & 0xFF);if (shaHex.length() < 2) {hexStr.append(0);}hexStr.append(shaHex);}return hexStr.toString();} catch (NoSuchAlgorithmException e) {e.printStackTrace();}return null;}
}

仅供参考，自行修改

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微信开发之使用java获取签名signature

一、前言

二、需要用到的jar包

详细代码

仅供参考，自行修改

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