Java微信企业付款到微信钱包
微信企业付款是一种通过微信支付的在线转账服务，允许企业或个人将资金从自己的微信账户转移到其他人的微信账户中。以下是使用 Java 来实现微信企业付款到微信钱包的详细步骤：
1.准备必要条件
* 微信开放平台账号:首先，需要在微信开放平台注册一个开发者账号，并且获得相关权限。
* 微信支付API:需要在微信开放平台中申请微信支付API，获取相关的AppID和密钥。
* Java开发环境:使用Java来编写程序，需要安装JDK和相关的IDE。
2.获取Access Token
* 请求地址: 请求参数:grant_type=client_credential&appid=[APPID]&secret=[SECRET]
* 返回结果:包含access_token和expires_in等信息```javaimport java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
public class Main {
public static void main(String[] args) throws Exception {
String appid = "your_app_id";
String secret = "your_secret";
URL url = new URL(" + appid + "&secret=" + secret);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
int responseCode = connection.getResponseCode();
if (responseCode ==200) {
BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
String inputLine;
StringBuffer response = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
System.out.println(response.toString());
} else {
System.out.println("Failed : HTTP error code : " + responseCode);
}
}
}
```
3.获取JSAPI Ticket
* 请求地址: 请求参数:type=jsapi&access_token=[ACCESS_TOKEN]
* 返回结果:包含jsapi_ticket和expires_in等信息```javaimport java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
public class Main {
public static void main(String[] args) throws Exception {
String access_token = "your_access_token";
URL url = new URL(" + access_token);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
int responseCode = connection.getResponseCode();
if (responseCode ==200) {
BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
String inputLine;
StringBuffer response = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
System.out.println(response.toString());
} else {
System.out.println("Failed : HTTP error code : " + responseCode);
}
}
}
```
4.生成签名
* 签名算法:使用SHA-256加密* 签名内容:jsapi_ticket、noncestr、timestamp和随机数等信息```javaimport java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
public class Main {
public static void main(String[] args) throws NoSuchAlgorithmException, Exception {
String jsapi_ticket = "your_jsapi_ticket";
String noncestr = "your_noncestr";
String timestamp = "your_timestamp";
String signature = jsapi_ticket + "&" + noncestr + "&" + timestamp;
MessageDigest md5 = MessageDigest.getInstance("SHA-256");
byte[] bytes = md5.digest(signature.getBytes());
StringBuilder sb = new StringBuilder();
for (byte b : bytes) {
sb.append(String.format("%02x", b));
}
System.out.println(sb.toString());
}
}
```
5.微信企业付款
* 请求地址: 请求参数:appid、mch_id、nonce_str、sign、body、total_fee等信息* 返回结果:包含transaction_id和result_code等信息```javaimport java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
public class Main {
public static void main(String[] args) throws Exception {
String appid = "your_appid";
String mch_id = "your_mch_id";
String nonce_str = "your_noncestr";
String sign = "your_sign";
String body = "your_body";
String total_fee = "1";
URL url = new URL(" + appid + "&mch_id=" + mch_id + "&nonce_str=" + nonce_str + "&sign=" + sign + "&body=" + body + "&total_fee=" + total_fee);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("POST");
int responseCode = connection.getResponseCode();
if (responseCode ==200) {
BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
String inputLine;
StringBuffer response = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
System.out.println(response.toString());
} else {
System.out.println("Failed : HTTP error code : " + responseCode);
}
}
}
```
以上是使用 Java 来实现微信企业付款到微信钱包的详细步骤。需要注意的是，微信开放平台和微信支付API的相关信息需要在微信开放平台中申请，并且需要遵守微信支付相关的规则和规范。
