远程Http接口调用响应

whycxzp

2024-12-31 d90888521c006f7f6cd8faf46f1829ebec0b0057

远程Http接口调用响应

 src/main/java/com/whyc/util/HttpUtil.java

@@ -3,6 +3,7 @@
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonSyntaxException;
import com.whyc.dto.Response;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

@@ -10,9 +11,15 @@
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.*;
import java.lang.reflect.Type;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Map;

public class HttpUtil {

@@ -94,4 +101,168 @@
        return t;
    }

    /**
     * get方式的http请求
     *
     * @param httpUrl 请求地址
     * @return 返回结果
     */
    public static Response<String> doGet(String httpUrl, String queryParams) {
        HttpURLConnection connection = null;
        InputStream inputStream = null;
        BufferedReader bufferedReader = null;
        String result = null;// 返回结果字符串
        Response<String> response = new Response<>();
        try {
            // 创建远程url连接对象
            URL url = new URL(new StringBuffer(httpUrl).append("?").append(queryParams).toString());
            // 通过远程url连接对象打开一个连接，强转成httpURLConnection类
            connection = (HttpURLConnection) url.openConnection();
            // 设置连接方式：get
            connection.setRequestMethod("GET");
            // 设置连接主机服务器的超时时间：15000毫秒
            connection.setConnectTimeout(5000);
            // 设置读取远程返回的数据时间：60000毫秒
            connection.setReadTimeout(6000);
            // 发送请求
            connection.connect();
            // 通过connection连接，获取输入流
            if (connection.getResponseCode() == 200) {
                inputStream = connection.getInputStream();
                // 封装输入流，并指定字符集
                bufferedReader = new BufferedReader(new InputStreamReader(inputStream, StandardCharsets.UTF_8));
                // 存放数据
                StringBuilder sbf = new StringBuilder();
                String temp;
                while ((temp = bufferedReader.readLine()) != null) {
                    sbf.append(temp);
                    sbf.append(System.getProperty("line.separator"));
                }
                result = sbf.toString();
                response.set(1,result);
            }
        } catch (IOException e) {
            response.set(0);
            String message = e.getMessage();
            response.setData(message);
        } finally {
            // 关闭资源
            if (null != bufferedReader) {
                try {
                    bufferedReader.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (null != inputStream) {
                try {
                    inputStream.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (connection != null) {
                connection.disconnect();// 关闭远程连接
            }
        }
        return response;
    }

    public static Response<String> doPost(String httpUrl, String requestBody) {
        HttpURLConnection connection = null;
        InputStream inputStream = null;
        OutputStream outputStream =null;
        BufferedReader bufferedReader = null;
        String result = null;// 返回结果字符串
        Response<String> response = new Response<>();
        try {
            // 创建远程url连接对象
            URL url = new URL(new StringBuffer(httpUrl).toString());
            // 通过远程url连接对象打开一个连接，强转成httpURLConnection类
            connection = (HttpURLConnection) url.openConnection();
            // 设置连接方式：post
            connection.setRequestMethod("POST");
            // 设置连接主机服务器的超时时间：15000毫秒
            connection.setConnectTimeout(5000);
            // 设置读取远程返回的数据时间：60000毫秒
            connection.setReadTimeout(6000);

            //请求体
            connection.setDoOutput(true);
            outputStream = connection.getOutputStream();
            OutputStreamWriter osw = new OutputStreamWriter(outputStream,"UTF-8");

            osw.write(requestBody);
            osw.flush();
            // 发送请求
            connection.connect();
            // 通过connection连接，获取输入流
            if (connection.getResponseCode() == 200) {
                inputStream = connection.getInputStream();
                // 封装输入流，并指定字符集
                bufferedReader = new BufferedReader(new InputStreamReader(inputStream, StandardCharsets.UTF_8));
                // 存放数据
                StringBuilder sbf = new StringBuilder();
                String temp;
                while ((temp = bufferedReader.readLine()) != null) {
                    sbf.append(temp);
                    sbf.append(System.getProperty("line.separator"));
                }
                result = sbf.toString();
                response.set(1);
                response.setData(result);
            }
        } catch (IOException e) {
            String message = e.getMessage();
            response.set(0);
            response.setData(message);
        } finally {
            // 关闭资源
            if (null != bufferedReader) {
                try {
                    bufferedReader.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (null != inputStream) {
                try {
                    inputStream.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (connection != null) {
                connection.disconnect();// 关闭远程连接
            }
            if (null != outputStream) {
                try {
                    outputStream.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return response;
    }

    /**
     * 将map型转为请求参数型
     *
     * @param data
     * @return
     */
    public static String urlEncode(Map<String, ?> data) {
        StringBuilder sb = new StringBuilder();
        for (Map.Entry<String, ?> i : data.entrySet()) {
            try {
                sb.append(i.getKey()).append("=").append(URLEncoder.encode(i.getValue() + "", "UTF-8")).append("&");
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }
        }
        String result = sb.toString();
        result = result.substring(0, result.lastIndexOf("&"));
        return result;
    }
}