succtrue Header ActionhttpwwwdongguanbankcnG012000602 Address0332 EsbHeader VrsNo100 ScnNo10 SrcDate20190903 SrcTime165025 SrcSysId0332 SrcCalCodUM

可以使用Java中的HttpClient库来发送HTTP请求，具体实现如下：

import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ContentType;
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 java.io.IOException;

public class HttpClientExample {

    public static void main(String[] args) throws IOException {
        CloseableHttpClient httpClient = HttpClients.createDefault();
        HttpPost httpPost = new HttpPost("http://www.dongguanbank.cn/G0120006/02");
        String json = "{\"succ\":true,\"Header\":{\"Action\":\"http://www.dongguanbank.cn/G0120006/02\",\"Address\":\"0332\"},\"EsbHeader\":{\"VrsNo\":\"100\",\"ScnNo\":\"10\",\"SrcDate\":\"20190903\",\"SrcTime\":\"165025\",\"SrcSysId\":\"0332\",\"SrcCalCod\":\"UMP\",\"GloSeqNo\":\"G033220190903000000000004\",\"ReqNo\":\"G033220190903000000000004\"},\"APPHeader\":null,\"APPBody\":{\"code\":0,\"msg\":\"成功\",\"uuid\":\"8b3ff1a6-fb15-4893-8064-bac4118fc1b2\",\"data\":null}}";
        httpPost.setEntity(new StringEntity(json, ContentType.APPLICATION_JSON));
        CloseableHttpResponse httpResponse = httpClient.execute(httpPost);
        try {
            HttpEntity entity = httpResponse.getEntity();
            String response = EntityUtils.toString(entity);
            EntityUtils.consume(entity);
            System.out.println(response);
        } finally {
            httpResponse.close();
        }
    }
}

其中，首先创建一个CloseableHttpClient对象，然后创建HttpPost对象，指定请求的URL地址，并将JSON字符串作为请求的body内容。最后，发送HTTP请求并获取响应内容。注意，需要在finally块中关闭响应。