Java經由過程JsApi方法完成微信付出。本站提示廣大學習愛好者：（Java經由過程JsApi方法完成微信付出）文章只能為提供參考，不一定能成為您想要的結果。以下是Java經由過程JsApi方法完成微信付出正文
要應用JsApi停止微信付出，起首要從微信取得一個prepay_id，然後經由過程挪用微信的jsapi完成付出，JS API的前往成果get_brand_wcpay_request:ok僅在用戶勝利完成付出時前往。因為前端交互龐雜，get_brand_wcpay_request:cancel或許get_brand_wcpay_request:fail可以同一處置為用戶碰到毛病或許自動廢棄，不用細化辨別。
示例代碼以下：
function onBridgeReady(){
WeixinJSBridge.invoke(
'getBrandWCPayRequest', {
"appId" : "wx2421b1c4370ec43b", //"號稱號，由商戶傳入
"timeStamp":" 1395712654", //時光戳，自1970年以來的秒數
"nonceStr" : "e61463f8efa94090b1f366cccfbbb444", //隨機串
"package" : "u802345jgfjsdfgsdg888",
"signType" : "MD5", //微信簽名方法:
"paySign" : "70EA570631E4BB79628FBCA90534C63FF7FADD89" //微信簽名
},
function(res){
if(res.err_msg == "get_brand_wcpay_request:ok" ) {} // 應用以上方法斷定前端前往,微信團隊慎重提醒：res.err_msg將在用戶付出勝利後前往 ok，但其實不包管它相對靠得住。
}
);
}
if (typeof WeixinJSBridge == "undefined"){
if( document.addEventListener ){
document.addEventListener('WeixinJSBridgeReady', onBridgeReady, false);
}else if (document.attachEvent){
document.attachEvent('WeixinJSBridgeReady', onBridgeReady);
document.attachEvent('onWeixinJSBridgeReady', onBridgeReady);
}
}else{
onBridgeReady();
}
以上傳入的參數package，即為prepay_id
上面講的是取得參數來挪用jsapi
我們挪用JSAPI時，必需取得用戶的openid，（trade_type=JSAPI，openid為必填參數。）
起首界說一個要求的對象：
package com.unstoppedable.protocol;
import com.unstoppedable.common.Configure;
import com.unstoppedable.common.HttpService;
import com.unstoppedable.common.RandomStringGenerator;
import com.unstoppedable.common.Signature;
import java.lang.reflect.Field;
import java.util.HashMap;
import java.util.Map;
public class UnifiedOrderReqData {
private String appid;
private String mch_id;
private String device_info;
private String nonce_str;
private String sign;
private String body;
private String detail;
private String attach;
private String out_trade_no;
private String fee_type;
private int total_fee;
private String spbill_create_ip;
private String time_start;
private String time_expire;
private String goods_tag;
private String notify_url;
private String trade_type;
private String product_id;
private String limit_pay;
private String openid;
private UnifiedOrderReqData(UnifiedOrderReqDataBuilder builder) {
this.appid = builder.appid;
this.mch_id = builder.mch_id;
this.device_info = builder.device_info;
this.nonce_str = RandomStringGenerator.getRandomStringByLength(32);
this.body = builder.body;
this.detail = builder.detail;
this.attach = builder.attach;
this.out_trade_no = builder.out_trade_no;
this.fee_type = builder.fee_type;
this.total_fee = builder.total_fee;
this.spbill_create_ip = builder.spbill_create_ip;
this.time_start = builder.time_start;
this.time_expire = builder.time_expire;
this.goods_tag = builder.goods_tag;
this.notify_url = builder.notify_url;
this.trade_type = builder.trade_type;
this.product_id = builder.product_id;
this.limit_pay = builder.limit_pay;
this.openid = builder.openid;
this.sign = Signature.getSign(toMap());
}
public void setAppid(String appid) {
this.appid = appid;
}
public void setMch_id(String mch_id) {
this.mch_id = mch_id;
}
public void setDevice_info(String device_info) {
this.device_info = device_info;
}
public void setNonce_str(String nonce_str) {
this.nonce_str = nonce_str;
}
public void setSign(String sign) {
this.sign = sign;
}
public void setBody(String body) {
this.body = body;
}
public void setDetail(String detail) {
this.detail = detail;
}
public void setAttach(String attach) {
this.attach = attach;
}
public void setOut_trade_no(String out_trade_no) {
this.out_trade_no = out_trade_no;
}
public void setFee_type(String fee_type) {
this.fee_type = fee_type;
}
public void setTotal_fee(int total_fee) {
this.total_fee = total_fee;
}
public void setSpbill_create_ip(String spbill_create_ip) {
this.spbill_create_ip = spbill_create_ip;
}
public void setTime_start(String time_start) {
this.time_start = time_start;
}
public void setTime_expire(String time_expire) {
this.time_expire = time_expire;
}
public void setGoods_tag(String goods_tag) {
this.goods_tag = goods_tag;
}
public void setNotify_url(String notify_url) {
this.notify_url = notify_url;
}
public void setTrade_type(String trade_type) {
this.trade_type = trade_type;
}
public void setProduct_id(String product_id) {
this.product_id = product_id;
}
public void setLimit_pay(String limit_pay) {
this.limit_pay = limit_pay;
}
public void setOpenid(String openid) {
this.openid = openid;
}
public Map<String, Object> toMap() {
Map<String, Object> map = new HashMap<String, Object>();
Field[] fields = this.getClass().getDeclaredFields();
for (Field field : fields) {
Object obj;
try {
obj = field.get(this);
if (obj != null) {
map.put(field.getName(), obj);
}
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}
return map;
}
public static class UnifiedOrderReqDataBuilder {
private String appid;
private String mch_id;
private String device_info;
private String body;
private String detail;
private String attach;
private String out_trade_no;
private String fee_type;
private int total_fee;
private String spbill_create_ip;
private String time_start;
private String time_expire;
private String goods_tag;
private String notify_url;
private String trade_type;
private String product_id;
private String limit_pay;
private String openid;
public UnifiedOrderReqDataBuilder(String appid, String mch_id, String body, String out_trade_no, Integer total_fee,
String spbill_create_ip, String notify_url, String trade_type) {
if (appid == null) {
throw new IllegalArgumentException("傳入參數appid不克不及為null");
}
if (mch_id == null) {
throw new IllegalArgumentException("傳入參數mch_id不克不及為null");
}
if (body == null) {
throw new IllegalArgumentException("傳入參數body不克不及為null");
}
if (out_trade_no == null) {
throw new IllegalArgumentException("傳入參數out_trade_no不克不及為null");
}
if (total_fee == null) {
throw new IllegalArgumentException("傳入參數total_fee不克不及為null");
}
if (spbill_create_ip == null) {
throw new IllegalArgumentException("傳入參數spbill_create_ip不克不及為null");
}
if (notify_url == null) {
throw new IllegalArgumentException("傳入參數notify_url不克不及為null");
}
if (trade_type == null) {
throw new IllegalArgumentException("傳入參數trade_type不克不及為null");
}
this.appid = appid;
this.mch_id = mch_id;
this.body = body;
this.out_trade_no = out_trade_no;
this.total_fee = total_fee;
this.spbill_create_ip = spbill_create_ip;
this.notify_url = notify_url;
this.trade_type = trade_type;
}
public UnifiedOrderReqDataBuilder setDevice_info(String device_info) {
this.device_info = device_info;
return this;
}
public UnifiedOrderReqDataBuilder setDetail(String detail) {
this.detail = detail;
return this;
}
public UnifiedOrderReqDataBuilder setAttach(String attach) {
this.attach = attach;
return this;
}
public UnifiedOrderReqDataBuilder setFee_type(String fee_type) {
this.fee_type = fee_type;
return this;
}
public UnifiedOrderReqDataBuilder setTime_start(String time_start) {
this.time_start = time_start;
return this;
}
public UnifiedOrderReqDataBuilder setTime_expire(String time_expire) {
this.time_expire = time_expire;
return this;
}
public UnifiedOrderReqDataBuilder setGoods_tag(String goods_tag) {
this.goods_tag = goods_tag;
return this;
}
public UnifiedOrderReqDataBuilder setProduct_id(String product_id) {
this.product_id = product_id;
return this;
}
public UnifiedOrderReqDataBuilder setLimit_pay(String limit_pay) {
this.limit_pay = limit_pay;
return this;
}
public UnifiedOrderReqDataBuilder setOpenid(String openid) {
this.openid = openid;
return this;
}
public UnifiedOrderReqData build() {
if("JSAPI".equals(this.trade_type) && this.openid == null) {
throw new IllegalArgumentException("當傳入trade_type為JSAPI時，openid為必填參數");
}
if("NATIVE".equals(this.trade_type) && this.product_id == null) {
throw new IllegalArgumentException("當傳入trade_type為NATIVE時，product_id為必填參數");
}
return new UnifiedOrderReqData(this);
}
}
}
由於有些參數為必填，有些參數為選填。並且sign要等一切參數傳入以後能力盤算的出，所以這裡用了builder形式。關於builder形式。
我們選用httpclient停止收集傳輸。
package com.unstoppedable.common;
import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.io.xml.DomDriver;
import com.thoughtworks.xstream.io.xml.XmlFriendlyNameCoder;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.ConnectTimeoutException;
import org.apache.http.conn.ConnectionPoolTimeoutException;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLContexts;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import javax.net.ssl.SSLContext;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.SocketTimeoutException;
import java.security.KeyStore;
/**
* Created by hupeng on 2015/7/28.
*/
public class HttpService {
private static Log logger = LogFactory.getLog(HttpService.class);
private static CloseableHttpClient httpClient = buildHttpClient();
//銜接超不時間，默許10秒
private static int socketTimeout = 5000;
//傳輸超不時間，默許30秒
private static int connectTimeout = 5000;
private static int requestTimeout = 5000;
public static CloseableHttpClient buildHttpClient() {
try {
KeyStore keyStore = KeyStore.getInstance("PKCS12");
FileInputStream instream = new FileInputStream(new File(Configure.getCertLocalPath()));//加載當地的證書停止https加密傳輸
try {
keyStore.load(instream, Configure.getCertPassword().toCharArray());//設置證書暗碼
} finally {
instream.close();
}
// Trust own CA and all self-signed certs
SSLContext sslcontext = SSLContexts.custom()
.loadKeyMaterial(keyStore, Configure.getCertPassword().toCharArray())
.build();
// Allow TLSv1 protocol only
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(
sslcontext,
new String[]{"TLSv1"},
null,
SSLConnectionSocketFactory.BROWSER_COMPATIBLE_HOSTNAME_VERIFIER);
RequestConfig requestConfig = RequestConfig.custom()
.setConnectTimeout(connectTimeout)
.setConnectionRequestTimeout(requestTimeout)
.setSocketTimeout(socketTimeout).build();
httpClient = HttpClients.custom()
.setDefaultRequestConfig(requestConfig)
.setSSLSocketFactory(sslsf)
.build();
return httpClient;
} catch (Exception e) {
throw new RuntimeException("error create httpclient......", e);
}
}
public static String doGet(String requestUrl) throws Exception {
HttpGet httpget = new HttpGet(requestUrl);
try {
logger.debug("Executing request " + httpget.getRequestLine());
// Create a custom response handler
ResponseHandler<String> responseHandler = new ResponseHandler<String>() {
@Override
public String handleResponse(
final HttpResponse response) throws ClientProtocolException, IOException {
int status = response.getStatusLine().getStatusCode();
if (status >= 200 && status < 300) {
HttpEntity entity = response.getEntity();
return entity != null ? EntityUtils.toString(entity) : null;
} else {
throw new ClientProtocolException("Unexpected response status: " + status);
}
}
};
return httpClient.execute(httpget, responseHandler);
} finally {
httpget.releaseConnection();
}
}
public static String doPost(String url, Object object2Xml) {
String result = null;
HttpPost httpPost = new HttpPost(url);
//處理XStream對湧現雙下劃線的bug
XStream xStreamForRequestPostData = new XStream(new DomDriver("UTF-8", new XmlFriendlyNameCoder("-_", "_")));
//將要提交給API的數據對象轉換成XML格局數據Post給API
String postDataXML = xStreamForRequestPostData.toXML(object2Xml);
logger.info("API，POST曩昔的數據是：");
logger.info(postDataXML);
//得指明應用UTF-8編碼，不然到API辦事器XML的中文不克不及被勝利辨認
StringEntity postEntity = new StringEntity(postDataXML, "UTF-8");
httpPost.addHeader("Content-Type", "text/xml");
httpPost.setEntity(postEntity);
//設置要求器的設置裝備擺設
logger.info("executing request" + httpPost.getRequestLine());
try {
HttpResponse response = httpClient.execute(httpPost);
HttpEntity entity = response.getEntity();
result = EntityUtils.toString(entity, "UTF-8");
} catch (ConnectionPoolTimeoutException e) {
logger.error("http get throw ConnectionPoolTimeoutException(wait time out)", e);
} catch (ConnectTimeoutException e) {
logger.error("http get throw ConnectTimeoutException", e);
} catch (SocketTimeoutException e) {
logger.error("http get throw SocketTimeoutException", e);
} catch (Exception e) {
logger.error("http get throw Exception", e);
} finally {
httpPost.abort();
}
return result;
}
}
然後是我們的總進口：
package com.unstoppedable.service;
import com.unstoppedable.common.Configure;
import com.unstoppedable.common.HttpService;
import com.unstoppedable.common.XMLParser;
import com.unstoppedable.protocol.UnifiedOrderReqData;
import org.xml.sax.SAXException;
import javax.xml.parsers.ParserConfigurationException;
import java.io.IOException;
import java.util.Map;
/**
* Created by hupeng on 2015/7/28.
*/
public class WxPayApi {
public static Map<String,Object> UnifiedOrder(UnifiedOrderReqData reqData) throws IOException, SAXException, ParserConfigurationException {
String res = HttpService.doPost(Configure.UNIFIED_ORDER_API, reqData);
return XMLParser.getMapFromXML(res);
}
public static void main(String[] args) throws Exception {
UnifiedOrderReqData reqData = new UnifiedOrderReqData.UnifiedOrderReqDataBuilder("appid", "mch_id", "body", "out_trade_no", 1, "spbill_create_ip", "notify_url", "JSAPI").setOpenid("openid").build();
System.out.println(UnifiedOrder(reqData));
}
}
前往的xml為：
<xml> <return_code><![CDATA[SUCCESS]]></return_code> <return_msg><![CDATA[OK]]></return_msg> <appid><![CDATA[wx2421b1c4370ec43b]]></appid> <mch_id><![CDATA[10000100]]></mch_id> <nonce_str><![CDATA[IITRi8Iabbblz1Jc]]></nonce_str> <sign><![CDATA[7921E432F65EB8ED0CE9755F0E86D72F]]></sign> <result_code><![CDATA[SUCCESS]]></result_code> <prepay_id><![CDATA[wx201411101639507cbf6ffd8b0779950874]]></prepay_id> <trade_type><![CDATA[JSAPI]]></trade_type> </xml>
return_code 和result_code都為SUCCESS的時刻會前往我們須要的prepay_id。。。，然後在jsapi中應用他便可以了。。
本文已被整頓到了《JavaScript微信開辟技能匯總》，迎接年夜家進修浏覽。
以上就是本文的全體內容，願望對年夜家的進修有所贊助。
