微信小程序第一步，微信api

其他 2020-02-07 20:30:00 阅读次数: 0

全部是代码

下部附有网盘链接

public class WeiXinConfigModel {
public String timestamp;


public String signature;


public String noncestr;
public String appid;


public String getAppid() {
return appid;
}


public void setAppid(String appid) {
this.appid = appid;
}


public String getNoncestr() {
return noncestr;
}


public void setNoncestr(String noncestr) {
this.noncestr = noncestr;
}


public String getTimestamp() {
return timestamp;
}


public void setTimestamp(String timestamp) {
this.timestamp = timestamp;
}


public String getSignature() {
return signature;
}


public void setSignature(String signature) {
this.signature = signature;
}


}

import java.sql.Timestamp;


import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;


@Entity
@Table(name = "accesstoken")
public class AccessToken {
@Id
private String accessTokenId;
private String appid;
private String secret;
private String access_token;
private String create_time;
private Timestamp createTimeStamp;


public Timestamp getCreateTimeStamp() {
return createTimeStamp;
}
public void setCreateTimeStamp(Timestamp createTimeStamp) {
this.createTimeStamp = createTimeStamp;
}
public String getAccessTokenId() {
return accessTokenId;
}
public void setAccessTokenId(String accessTokenId) {
this.accessTokenId = accessTokenId;
}
public String getAppid() {
return appid;
}
public void setAppid(String appid) {
this.appid = appid;
}
public String getSecret() {
return secret;
}
public void setSecret(String secret) {
this.secret = secret;
}
public String getAccess_token() {
return access_token;
}
public void setAccess_token(String access_token) {
this.access_token = access_token;
}
public String getCreate_time() {
return create_time;
}
public void setCreate_time(String create_time) {
this.create_time = create_time;
}


}


import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;


import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.carlock.model.AccessToken;
import com.carlock.model.WeiXinConfigModel;
import com.carlock.service.AccessTokenService;
@Controller
@RequestMapping("/weixin")
public class WeiXinController1 {
Logger logger = Logger.getLogger(this.getClass());
static String AppId = "wxb2fdcdfsdfdsfs";// 第三方用户唯一凭证
static String secret = "1cd9198e6bc4sdsdsdsdsds";// 第三方用户唯一凭证密钥，即appsecret


@Autowired
AccessTokenService accessTokenService;


public static String getAccessToken() {
String access_token = "";
String grant_type = "client_credential";// 获取access_token填写client_credential
// 这个url链接地址和参数皆不能变
String url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=" + grant_type + "&appid=" + AppId + "&secret="
+ secret;
try {
URL urlGet = new URL(url);
HttpURLConnection http = (HttpURLConnection) urlGet.openConnection();
http.setRequestMethod("GET"); // 必须是get方式请求
http.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
http.setDoOutput(true);
http.setDoInput(true);
System.setProperty("sun.net.client.defaultConnectTimeout", "30000");// 连接超时30秒
System.setProperty("sun.net.client.defaultReadTimeout", "30000"); // 读取超时30秒
http.connect();
InputStream is = http.getInputStream();
int size = is.available();
byte[] jsonBytes = new byte[size];
is.read(jsonBytes);
String message = new String(jsonBytes, "UTF-8");
JSONObject demo=JSON.parseObject(message);
access_token=demo.getString("access_token");
is.close();
} catch (Exception e) {
e.printStackTrace();
}
return access_token;
}


public static String getTicket(String access_token) {
String ticket = null;
String url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=" + access_token + "&type=jsapi";// 这个url链接和参数不能变
try {
URL urlGet = new URL(url);
HttpURLConnection http = (HttpURLConnection) urlGet.openConnection();
http.setRequestMethod("GET"); // 必须是get方式请求
http.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
http.setDoOutput(true);
http.setDoInput(true);
System.setProperty("sun.net.client.defaultConnectTimeout", "30000");// 连接超时30秒
System.setProperty("sun.net.client.defaultReadTimeout", "30000"); // 读取超时30秒
http.connect();
InputStream is = http.getInputStream();
int size = is.available();
byte[] jsonBytes = new byte[size];
is.read(jsonBytes);
String message = new String(jsonBytes, "UTF-8");
JSONObject demoJson = JSON.parseObject(message);
ticket = demoJson.getString("ticket");
is.close();
} catch (Exception e) {
e.printStackTrace();
}
return ticket;
}


public static String SHA1(String decript) {
try {
MessageDigest digest = java.security.MessageDigest.getInstance("SHA-1");
digest.update(decript.getBytes());
byte messageDigest[] = digest.digest();
// Create Hex String
StringBuffer hexString = 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) {
hexString.append(0);
}
hexString.append(shaHex);
}
return hexString.toString();


} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
}
return "";
}


@RequestMapping("/index")
@ResponseBody
public WeiXinConfigModel Index(HttpServletRequest request, HttpServletResponse response, String address,
AccessToken accessToken,Model model) {
// 1、获取AccessToken

String access_token ="";
if(access_token==null||access_token==""){
accessToken=accessTokenService.select();
if(accessToken.getAccess_token()==null||accessToken.getAccess_token().equals("")||accessToken.getAccess_token().length()<=0){
access_token=getAccessToken();
saveAccessToken(access_token);
}else{
//如果以前获取过
//access_token有失效时间，先检查以前存入的是不是已经失效
Long now = new Date().getTime();//获取当前时间的
//当前时间减去存入时间，看看是不是在失效时间范围7200S内,我这里设置的验证时间小于7200s
Long count = now - accessToken.getCreateTimeStamp();// 1000*60*2
int nowLong = 1000 * 60 * 100;// 100分钟
              if (count > nowLong) {//失效了  重新获取存入
              access_token=getAccessToken();
     saveAccessToken(access_token);
              }else{//未失效，下面直接调用，这个可以不要
              
              }
}

}
// 2、获取Ticket
String jsapi_ticket = getTicket(access_token);
// 3、时间戳和随机字符串
String noncestr = UUID.randomUUID().toString().replace("-", "").substring(0, 16);// 随机字符串
String timestamp = String.valueOf(System.currentTimeMillis() / 1000);// 时间戳
// 5、将参数排序并拼接字符串
String str = "jsapi_ticket=" + jsapi_ticket + "&noncestr=" + noncestr + "&timestamp=" + timestamp + "&url="
+ address;
// 6、将字符串进行sha1加密
String signature = SHA1(str);
WeiXinConfigModel weixin = new WeiXinConfigModel();
weixin.setSignature(signature);
weixin.setNoncestr(noncestr);
weixin.setTimestamp(timestamp);
weixin.setAppid(AppId);
return weixin;
}

//保存access_token

public void saveAccessToken(String access_token){
try {
AccessToken accessToken=new AccessToken();
accessToken.setAccess_token(access_token);//AppId
accessToken.setAppid(AppId);
accessToken.setSecret(secret);
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//设置日期格式
Date date=new Date();
String time=df.format(date);
accessToken.setCreate_time(time);
accessTokenService.insert(accessToken); //保存accessToken，可以根据自己情况存入数据库
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
}
}

前端 微信js插件

在需要调用JS接口的页面引入如下JS文件，（支持https）：http://res.wx.qq.com/open/js/jweixin-1.2.0.js

<script type="text/javascript" src="http://res.wx.qq.com/open/js/jweixin-1.2.0.js"></script>
<script type="text/javascript">
//获取微信验证
$(function() {
var signature;
var noncestr;
var timestamp;
var appid;
var url1 = window.location.href;  //获取当前路径  记住域名一定要在微信公众号添加了安全域名配置
$(document).ready(
function() {
$.ajax({
type : "post",
url : "/weixin/index?address="+ window.location.href,//通过后台请求，获取微信验证信息
dataType : "json",
contentType : "application/json; charset=utf-8",
success : function(data) {
signature = data.signature;
noncestr = data.noncestr;
timestamp = data.timestamp; 
appid = data.appid;
wx.config({
debug : false, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。
appId : appid, // 必填，公众号的唯一标识
timestamp : timestamp1, // 必填，生成签名的时间戳
nonceStr : noncestr,// 必填，生成签名的随机串
signature : signature,// 必填，签名，见附录1
jsApiList : [ 'scanQRCode' ]// 必填，需要使用的JS接口列表，所有JS接口列表见附录2
});
//config信息验证失败
wx.error(function(res) {
alert("验证失败");
});
},
error : function(data) {
alert('网络错误');
}
});
});
});


//点击扫码按钮
$("#scanRCode").click(function(){
wx.scanQRCode({
needResult : 1,//默认0，扫描结果，微信处理，1，直接返回扫描结果
scanType : [ "qrCode" ],//指定扫二维码
success : function(res) {
var url = res.resultStr;//result为1时，扫码返回的结果  url即为二维码中数据
if(url.indexOf(",")>=0){
                     var getresult = url.split(',');
                     var getresult1 = getresult[1];
                     //弹出二维码结果
                    alert(getresult1);
                 }else{
                     //有问题
                 }
}
});    
});

链接

链接：https://pan.baidu.com/s/1_8Hs6V06GdX7ia5fYV4MlQ
提取码：7s8u

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