“无法找到要求目标的有效认证路径”当我向网址发布https请求时

我已经完成了在本地Tomcat中配置SSL。

当我调用getOutputStream（）

I have completed configuring SSL in my local Tomcat.
And the exception was thrown when I call getOutputStream()

public static InputStream send( String uri, Map<String, String> queryString, 
            Map<String, String> headers, String method, String reqBody) throws IOException
    {
        String body = (reqBody != null ? reqBody : "");

        //URL myURL = new URL(addUrlParam(uri, queryString));
        URL myURL = new URL(uri);
        HttpURLConnection httpConn = (HttpURLConnection)myURL.openConnection();

        httpConn.setRequestMethod(method);
        httpConn.setRequestProperty("Content-Length", String.valueOf(body.toString().getBytes().length));

        if ( headers != null ) {
            for ( String key : headers.keySet() ) {
                httpConn.setRequestProperty(key, headers.get(key));
            }
        }

        httpConn.setDoInput(true);

        //POST
        if (!HTTP_GET.equals(method) || body.length() > 0) {
            httpConn.setDoOutput(true);
            httpConn.setUseCaches(false); //POST do not use user caches
            ***httpConn.getOutputStream().write(body.toString().getBytes());***
            httpConn.getOutputStream().flush();
        }

        return httpConn.getInputStream();
    }

如何解决问题？

提前感谢！