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@@ -0,0 +1,34 @@
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+package vip.xiaonuo.biz.core.utils;
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+
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+import cn.hutool.core.io.IoUtil;
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+import com.alibaba.fastjson.JSONObject;
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+import java.io.*;
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+import java.net.HttpURLConnection;
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+import java.net.URL;
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+
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+public class WxUtil {
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+ public static InputStream postInputStream(String urlStr , JSONObject paramJson) throws Exception {
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+ //获取小程序码，适用于需要的码数量较少的业务场景。通过该接口生成的小程序码，永久有效，有数量限制
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+ URL url = new URL(urlStr);
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+
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+ HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
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+ httpURLConnection.setRequestMethod("POST");// 提交模式
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+ // 发送POST请求必须设置如下两行
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+ httpURLConnection.setDoOutput(true);
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+ httpURLConnection.setDoInput(true);
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+ // 获取URLConnection对象对应的输出流
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+ PrintWriter printWriter = new PrintWriter(httpURLConnection.getOutputStream());
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+
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+ printWriter.write(paramJson.toString());
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+ // flush输出流的缓冲
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+ printWriter.flush();
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+ String contentType = httpURLConnection.getContentType();
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+ if (contentType.contains("json")) {
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+ IoUtil.copy(httpURLConnection.getInputStream(), System.out);
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+ throw new IllegalArgumentException("调用微信小程序生成接口出错");
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+ } else {
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+ //开始获取数据
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+ return httpURLConnection.getInputStream();
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+ }
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+ }
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+}
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xuchao