调用三方接口工具类

src/main/java/com/ihooyah/flume/sink/util/HttpRequestUtil.java

+package com.ihooyah.flume.sink.util;
+
+import org.apache.http.HttpEntity;
+import org.apache.http.HttpStatus;
+import org.apache.http.StatusLine;
+import org.apache.http.client.methods.CloseableHttpResponse;
+import org.apache.http.client.methods.HttpPost;
+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.*;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * @description: 苏证通请求工具类
+ * @author:taojjun
+ * @date:2021-01-0510:48
+ **/
+public class HttpRequestUtil {
+    /**
+     * 发送GET请求
+     *
+     * @param url        目的地址
+     * @param parameters 请求参数，Map类型。
+     * @return 远程响应结果
+     */
+    public static String sendGet(String url, Map<String, String> parameters) {
+        String result = "";
+        // 读取响应输入流
+        BufferedReader in = null;
+        // 存储参数
+        StringBuffer sb = new StringBuffer();
+        // 编码之后的参数
+        String params = "";
+        try {
+            // 编码请求参数
+            if (parameters.size() == 1) {
+                for (String name : parameters.keySet()) {
+                    sb.append(name).append("=").append(java.net.URLEncoder.encode(parameters.get(name), "UTF-8"));
+                }
+                params = sb.toString();
+            } else {
+                for (String name : parameters.keySet()) {
+                    sb.append(name).append("=").append(java.net.URLEncoder.encode(parameters.get(name), "UTF-8"))
+                            .append("&");
+                }
+                String temp_params = sb.toString();
+                params = temp_params.substring(0, temp_params.length() - 1);
+            }
+            String full_url = url + "?" + params;
+            System.out.println(full_url);
+            // 创建URL对象
+            URL connURL = new URL(full_url);
+            // 打开URL连接
+            HttpURLConnection httpConn = (HttpURLConnection) connURL.openConnection();
+            // 设置通用属性
+            httpConn.setRequestProperty("Accept", "*/*");
+            httpConn.setRequestProperty("Connection", "Keep-Alive");
+            httpConn.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1)");
+            // 建立实际的连接
+            httpConn.connect();
+            // 响应头部获取
+            Map<String, List<String>> headers = httpConn.getHeaderFields();
+            // 遍历所有的响应头字段
+            for (String key : headers.keySet()) {
+                System.out.println(key + "\t：\t" + headers.get(key));
+            }
+            // 定义BufferedReader输入流来读取URL的响应,并设置编码方式
+            in = new BufferedReader(new InputStreamReader(httpConn.getInputStream(), "UTF-8"));
+            String line;
+            // 读取返回的内容
+            while ((line = in.readLine()) != null) {
+                result += line;
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        } finally {
+            try {
+                if (in != null) {
+                    in.close();
+                }
+            } catch (IOException ex) {
+                ex.printStackTrace();
+            }
+        }
+        return result;
+    }
+
+    /**
+     * 发送post请求
+     * @param url 请求的url
+     * @param parameter 请求的参数
+     * @return 返回字符串结果
+     */
+    public static String sendPost(String url, String parameter, Map<String, String> parameters) {
+        String result = "";
+        // 存储参数
+        StringBuffer sb = new StringBuffer();
+        // 编码之后的参数
+        String params = "";
+        try {
+            // 编码请求参数
+            if (parameters.size() == 1) {
+                for (String name : parameters.keySet()) {
+                    sb.append(name).append("=").append(java.net.URLEncoder.encode(parameters.get(name), "UTF-8"));
+                }
+                params = sb.toString();
+            } else {
+                for (String name : parameters.keySet()) {
+                    sb.append(name).append("=").append(java.net.URLEncoder.encode(parameters.get(name), "UTF-8"))
+                            .append("&");
+                }
+                String temp_params = sb.toString();
+                params = temp_params.substring(0, temp_params.length() - 1);
+            }
+            String full_url = url + "?" + params;
+            URL u0 = new URL(full_url);
+            HttpURLConnection conn = (HttpURLConnection) u0.openConnection();
+            conn.setRequestMethod("POST");
+            byte contentbyte[] = parameter.toString().getBytes();
+            //设置请求类型
+            conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8");
+            //设置表单长度
+            conn.setRequestProperty("Content-Length", (new StringBuilder()).append(contentbyte.length).toString());
+            //设置默认语言
+            conn.setRequestProperty("Content-Language", "en-US");//zh-CN代表中国  默认为美式英语httpurlconnection.setRequestProperty("Accept-Charset", "utf-8");
+            conn.setRequestProperty("contentType", "utf-8");
+            //连接主机的超时时间（单位：毫秒）
+            conn.setConnectTimeout(60000);
+            //从主机读取数据的超时时间（单位：毫秒)
+            conn.setReadTimeout(60000);
+            // Post 请求不能使用缓存
+            conn.setUseCaches(false);
+            // 设置是否从httpUrlConnection读入，默认情况下是true;
+            conn.setDoInput(true);
+            // 设置是否向httpUrlConnection输出，因为这个是post请求，参数要放在    2
+            // http正文内，因此需要设为true, 默认情况下是false;
+            conn.setDoOutput(true);
+            BufferedWriter bWriter = new BufferedWriter(new OutputStreamWriter(conn.getOutputStream(),"utf-8"));
+            bWriter.write(parameter);
+            bWriter.flush();
+            bWriter.close();
+            // 调用HttpURLConnection连接对象的getInputStream()函数,
+            // 将内存缓冲区中封装好的完整的HTTP请求电文发送到服务端。
+            InputStream in = conn.getInputStream();
+            StringBuffer buffer = new StringBuffer();
+            for (int i = 0; i != -1;) {
+                i = in.read();
+                if (i != -1) {
+                    buffer.append((char) i);
+                }
+            }
+            in.close();
+            //此方法是用Reader读取BufferedReader reader = new BufferedReader(new InputStreamReader( connection.getInputStream()));
+
+            result = new String(buffer.toString().getBytes("iso-8859-1"), "UTF-8");
+        } catch (Exception ex) {
+            ex.printStackTrace();
+        }
+        return result;
+    }
+
+    public static String doPostJson(String url, String params, Map<String, String> header) {
+        CloseableHttpClient httpclient = HttpClients.createDefault();
+        HttpPost httpPost = new HttpPost(url);
+        if (header != null) {
+            for (String key : header.keySet()) {
+                String value = header.get(key);
+                httpPost.setHeader(key, value);
+            }
+        }
+        httpPost.setHeader("Accept", "application/json");
+        httpPost.setHeader("Content-Type", "application/json");
+//        RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(20000).setConnectTimeout(20000).build();
+//        httpPost.setConfig(requestConfig);
+        if(params !=null) {
+            String charSet = "UTF-8";
+            StringEntity entity = new StringEntity(params, charSet);
+            httpPost.setEntity(entity);
+        }
+        CloseableHttpResponse response = null;
+        try {
+            response = httpclient.execute(httpPost);
+            StatusLine status = response.getStatusLine();
+            int state = status.getStatusCode();
+            if (state == HttpStatus.SC_OK) {
+                HttpEntity responseEntity = response.getEntity();
+                String jsonString = EntityUtils.toString(responseEntity);
+                return jsonString;
+            } else {
+                return null;
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+            return null;
+        } finally {
+            if (response != null) {
+                try {
+                    response.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+            try {
+                httpclient.close();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+}