import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.Calendar;
import java.util.HashMap;
import java.util.Map;
import org.apache.commons.lang3.RandomStringUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.HttpStatus;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPut;
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 org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.gson.Gson;

/**
 * 接口签名演示类
 */
public class SignatureDemo {
   private static final Logger logger = LoggerFactory.getLogger(SignatureDemo.class);
   
   // 接口服务地址
   static String restSever = "http://192.168.10.173:11080/ums/service/V1/res/users";
// 身份系统签发给应用对接的密钥
   static String pwd = "ZNn2fdrvSWR+aGN2ORe/CtMfIq4yuJSzFBtVuaqVnUEJ457QB3W7l0T9yslAMr3H";

   public static void main(String[] args) {
// 创建HttpClient对象
      CloseableHttpClient httpclient = HttpClients.createDefault();
      
      /**
       * GET查询接口演示代码
       */
      HttpGet httpGet = new HttpGet(getFullUrl);
      // 对参数签名，并放入请求header中的signData参数中
      try {
     
         String urlStr = httpGet.getURI().toString();

     if (StringUtils.endsWith(urlStr, "/")) {
            urlStr = StringUtils.removeEnd(urlStr, "/");
         }

         httpGet.setURI(new URI(urlStr));
         RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(3000)
               .setConnectionRequestTimeout(3000).setSocketTimeout(3000).build();
         httpGet.setConfig(requestConfig);
       // 执行请求
         CloseableHttpResponse response = httpclient.execute(httpGet);
         // 取响应的结果
         int statusCode = response.getStatusLine().getStatusCode();
         // 打印响应结果
         if (statusCode == HttpStatus.SC_OK) {
            String resp = EntityUtils.toString(response.getEntity(), "utf-8");
            System.out.println("status:" + statusCode);
            System.out.println("result:" + resp);
         }

      } catch (ClientProtocolException e) {
         e.printStackTrace();
      } catch (IOException e) {
         e.printStackTrace();
      }

      /**
       * PUT修改接口的演示代码，POST与PUT类似
       */
      String ID = "aa03a5c692cf480b87887e0ff8cfe566";
      // 这里若是通过ID查询的，接口中ID是作为路径存在的，所以需要将ID组合成
      String putQueryParam = "ID=" + ID;
      String putFullUrl = restSever + "/" + ID; // 访问用户接口
      HttpPut httpPut = new HttpPut(putFullUrl);
      // 模拟POST/PUT的body中数据，需转为JSON进行签名。GET则没有这部分内容。
      Map<String, Object> dataMap = new HashMap<String, Object>();
      dataMap.put("USER_NAME", "张三");
      String bodyParam = new Gson().toJson(dataMap);
      String postAllParamUrl = commonParamUrl + "&" + putQueryParam + "&bodyData=" + bodyParam;

      StringEntity bodyData = new StringEntity(bodyParam.toString(), "UTF-8");
      httpPut.setEntity(bodyData);
   
      try {
  
         String urlStr = httpPut.getURI().toString();

         // 公共参数URL
         System.out.println("commonParamter:" + urlStr);

         if (StringUtils.endsWith(urlStr, "/")) {
            urlStr = StringUtils.removeEnd(urlStr, "/");
         }

         httpPut.setURI(new URI(urlStr));
         RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(3000)
               .setConnectionRequestTimeout(3000).setSocketTimeout(3000).build();
         httpPut.setConfig(requestConfig);
         System.out.println("urlStr in request:" + httpPut.getURI().toString());

         // 执行请求
         CloseableHttpResponse response = httpclient.execute(httpPut);
         // 取响应的结果
         int statusCode = response.getStatusLine().getStatusCode();
         // 打印响应结果
         if (statusCode == HttpStatus.SC_OK) {
            String resp = EntityUtils.toString(response.getEntity(), "utf-8");
            System.out.println("status:" + statusCode);
            System.out.println("result:" + resp);
         }
      } catch (URISyntaxException e) {
         logger.error("签名失败：", e);
      } catch (ClientProtocolException e) {
         e.printStackTrace();
      } catch (IOException e) {
         e.printStackTrace();
      }

   }
}