本篇文章為大家展示了怎么在java中通過(guò)調(diào)用微信接口實(shí)現(xiàn)一個(gè)網(wǎng)頁(yè)分享功能,內(nèi)容簡(jiǎn)明扼要并且容易理解,絕對(duì)能使你眼前一亮,通過(guò)這篇文章的詳細(xì)介紹希望你能有所收獲。

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一、微信util類
public class ShareConstants {
//微信獲取ticket的接口
public static final String TICKET_URL_TEST = "https://api.weixin.qq.com/cgi-bin/ticket/getticket" ;
public static final String type = "jsapi" ;
//微信獲取token的接口
public static final String GET_TOKEN_URL = "https://api.weixin.qq.com/cgi-bin/token";
public static final String grant_type = "client_credential" ;
}public class WeixinUtil {
private static Logger logger = LoggerFactory.getLogger(WeixinUtil.class) ;
public static boolean signatureCheck(String token,String timeStamp,String nonce,String signature) throws Exception{
List<String > list = new ArrayList<String>(3){
public String toString(){
return this.get(0)+this.get(1)+this.get(2) ;
}
} ;
list.add(token) ;
list.add(timeStamp) ;
list.add(nonce) ;
Collections.sort(list) ;
MessageDigest md = MessageDigest.getInstance("SHA-1") ;
byte[] digest = md.digest(list.toString().getBytes()) ;
String testStr = WeixinUtil.byteArrayToHexString(digest) ;
logger.info("token:{},timestamp:{},nonce:{},testStr:{}");
if(testStr.equalsIgnoreCase(signature.toUpperCase())){
return true;
}else{
return false ;
}
}
public static String signature(String jsapiTicket,String nonceStr,Long timestamp,String url) throws Exception{
String str = String.format("jsapi_ticket=%s&noncestr=%s×tamp=%d&url=%s",
jsapiTicket,nonceStr,timestamp,url) ;
logger.info("signature url:{}",str);
MessageDigest md = MessageDigest.getInstance("SHA-1") ;
byte[] digest = md.digest(str.getBytes()) ;
String sigStr = WeixinUtil.byteArrayToHexString(digest) ;
return sigStr ;
}
public static String byteArrayToHexString(byte[] array){
String strDigest = "" ;
for(int i = 0 ;i<array.length;i++){
strDigest+=byteToHexString(array[i]) ;
}
return strDigest ;
}
public static String byteToHexString(byte ib){
char[] Digit = {'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'} ;
char [] ob = new char[2] ;
ob[0] = Digit[(ib >>> 4) & 0X0F] ;
ob[1] = Digit[ib &0X0F] ;
String s = new String(ob) ;
return s ;
}
public static String getWeiXinShareToken(String appId,String secret) throws Exception{
Map<String,String> maps = new HashMap<String,String>() ;
maps.put("grant_type", ShareConstants.grant_type) ;
maps.put("appid",appId) ;
maps.put("secret",secret) ;
try{
String result = HttpInvokeUtil.httpGet(ShareConstants.GET_TOKEN_URL,maps) ;
JSONObject jsonObject = JSONObject.parseObject(result) ;
String access_token = (String) jsonObject.get("access_token") ;
Integer expires_in = (Integer) jsonObject.get("expires_in") ;
logger.debug("getToken access_token:{},expires_in:{}",access_token,expires_in);
if(access_token !=null && expires_in!=null && expires_in==7200)
return access_token ;
else
return null ;
}catch (Exception ex){
logger.error("ex:stack:{}",ex.getStackTrace().toString());
throw new Exception("get Token failed");
}
}
public static String getJsApiTicket(String token) throws Exception{
Map<String,String> maps = new HashMap<String,String>() ;
maps.put("access_token",token);
maps.put("type",ShareConstants.type);
try{
String result = HttpInvokeUtil.httpGet(ShareConstants.TICKET_URL_TEST,maps) ;
JSONObject jsonObject = JSONObject.parseObject(result) ;
Integer errcode = (Integer) jsonObject.get("errcode") ;
if(errcode==null || (errcode!=null &&errcode!=0)){
logger.error("get jsapiTicket is failed, errcode:{}",errcode);
return null ;
}else{
String ticket = (String) jsonObject.get("ticket") ;
return ticket ;
}
}catch (Exception ex){
logger.error("ex.stack:{}",ex.getStackTrace().toString());
throw new Exception("getJsApi Ticket is failed") ;
}
}
}注意上面HttpInvokeUtil.httpGet()是httpclint這個(gè)可以自己去寫(xiě),只要能發(fā)請(qǐng)求就行,
二、controller層
//currUrl ==前端想要分享的網(wǎng)頁(yè)地址
@RequestMapping(value = "/getWConfig", method = RequestMethod.GET)
@ResponseBody
//@RequiredLogin
public FrameResp getWConfig(@Param("currUrl") String currUrl) throws UserException, Exception {
if (currUrl == null) {
return buildErrorResp(ErrorCodeConst.ERROR_PARAM_ERROR);
}
logger.info("get the encode currUrl {}", currUrl);
String urlTmp = URLDecoder.decode(currUrl, "UTF-8");
logger.info("decode currUrl {}", currUrl);
Long timestamp = new Date().getTime() / 1000;
String url = urlTmp.split("#")[0];
WConfigResp wConfigResp = new WConfigResp();
//修改為本地加載分享
//shareConfig.getAppId()==自己的appid
//shareConfig.getUxinAppSecret()==自己的AppSecret
String token = WeixinUtil.getWeiXinShareToken(shareConfig.getAppId(), shareConfig.getUxinAppSecret());
String ticket = WeixinUtil.getJsApiTicket(token);
if (ticket == null) {
logger.error("get jsApiTicketSec is failed");
throw new Exception("get jsApi is failed");
}
wConfigResp.setAppid(shareConfig.getAppId());
wConfigResp.setTimestamp(timestamp);
wConfigResp.setNonceStr(RandomStringUtils.random(10, true, true));
logger.info("appid:{},ticket:{},timestamp:{},nonceStr:{},url:{}", shareConfig.getAppId(), ticket, timestamp, wConfigResp.getNonceStr(), url);
String signature = WeixinUtil.signature(ticket, wConfigResp.getNonceStr(), wConfigResp.getTimestamp(), url);
if (signature != null) {
wConfigResp.setSignature(signature);
return buildSuccessResp(wConfigResp);
} else {
logger.error("getWcConfig is failed");
throw new Exception("error getWConfig");
}
}三、自定義的返回值類-WConfigResp
@Data
public class WConfigResp extends BaseModel{
private String appid ;
private Long timestamp ;
private String nonceStr;
private String signature ;
}上述內(nèi)容就是怎么在java中通過(guò)調(diào)用微信接口實(shí)現(xiàn)一個(gè)網(wǎng)頁(yè)分享功能,你們學(xué)到知識(shí)或技能了嗎?如果還想學(xué)到更多技能或者豐富自己的知識(shí)儲(chǔ)備,歡迎關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道。
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