Java后台模拟发送http的get和post请求，并测试

Posted 2020-08-30 果感

个人学习使用：谨慎参考

1 Client类

import com.thoughtworks.gauge.Step;
import com.thoughtworks.gauge.Table;
import com.thoughtworks.gauge.TableRow;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * Created by KSC on 2/7/2017.
 */
public class testClient {


    //send get request

    /**
     *
     * @param url destination address
     * @param parametersTable request parameters
     * @return remote response result
     */
    @Step("the get method url is <url> and parameters are <parametersTable>")
    public static String sendGet(String url,Table parametersTable){
        Map<String,String> parameters = new HashMap<>();

        for(TableRow row : parametersTable.getTableRows()){
            String key = row.getCell("name");
            String value = row.getCell("age");
            parameters.put(key,value);
        }
        for (String s: parameters.keySet()){
            System.out.println(s+"\t"+parameters.get(s));
        }

        String result = "";//返回的结果
        BufferedReader in = null;//读取响应的输入流
        StringBuffer sf = new StringBuffer();//存储参数
        String params = "";//编码后的参数


        try{
            if (parameters.size() == 1){
                for(String name : parameters.keySet()){
                    sf.append(name).append("=").append(
                            java.net.URLEncoder.encode(parameters.get(name),"UTF-8")
                    );
                }
                params = sf.toString();
            }else{
                for(String name : parameters.keySet()){
                    sf.append(name).append("=").append(
                            java.net.URLEncoder.encode(parameters.get(name),"UTF-8")
                    ).append("&");
                }
                String tempParams = sf.toString();
                params = tempParams.substring(0,tempParams.length()-1);
                System.out.println(params);
            }

            String fullUrl = url + "?" + params;
            System.out.println(fullUrl);

            //创建URL对象
            URL connUrl = new URL(fullUrl);
            //打开URL链接
            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)");

            //建立实际链接
            httpConn.connect();

            //响应头部的获取
            Map<String,List<String>> headers = httpConn.getHeaderFields();

            System.out.println("==============================");
            //遍历头部所有字段
            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  = result+line;
            }

        }catch(Exception e){
            e.printStackTrace();
        }finally{
            try{
                if(in != null){
                    in.close();
                }
            }catch(IOException ex){
                ex.printStackTrace();
            }
        }

        System.out.println("*****************************");
        System.out.println(result);
        System.out.println("==============================");
        return result;
    }


//send post request
@Step("the post method url is <url> and parameters are <parametersTable>")
    public static String sendPost(String url,Table parametersTable){
    Map<String,String> parameters = new HashMap<>();

    for(TableRow row : parametersTable.getTableRows()){
        String key = row.getCell("name");
        String value = row.getCell("age");
        parameters.put(key,value);
    }
    for (String s: parameters.keySet()){
        System.out.println(s+"\t\t"+parameters.get(s));
    }
    System.out.println("---------------------");

        String result = "";
        BufferedReader in = null;
        PrintWriter out = null;//
        StringBuffer sf = new StringBuffer();
        String params = "";

        try{

            if (parameters.size() == 1){
                for(String name : parameters.keySet()){
                    sf.append(name).append("=").append(
                            java.net.URLEncoder.encode(parameters.get(name),"UTF-8")
                    );
                }
                params = sf.toString();
            }else{
                for(String name : parameters.keySet()){
                    sf.append(name).append("=").append(
                            java.net.URLEncoder.encode(parameters.get(name),"UTF-8")
                    ).append("&");
                }
                String tempParams = sf.toString();
                params = tempParams.substring(0,tempParams.length()-1);
            }

            URL connUrl = new URL(url);

            HttpURLConnection httpConn = (HttpURLConnection)connUrl.openConnection();

            httpConn.setRequestProperty("Accept","*/*");
            httpConn.setRequestProperty("Connection","Keep-Alive");
            httpConn.setRequestProperty("User-Agent","Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1)");

            //设置post方式
            httpConn.setDoInput(true);
            httpConn.setDoOutput(true);

            //获取HttpUrlConnection对象对应的输出流
            out = new PrintWriter(httpConn.getOutputStream());

            //发送请求参数
            out.write(params);

            //flush(冲洗)输出流中的缓冲
            out.flush();

            in = new BufferedReader(new InputStreamReader(httpConn.getInputStream(),"UTF-8"));

            String line = "";
            while((line = in.readLine()) != null){
                result = result+line;
            }


        }catch(Exception e){
            e.printStackTrace();
        }finally{
            try{
                if(out != null){
                    out.close();
                }
                if(in != null){
                    in.close();
                }
            }catch(IOException e){
                e.printStackTrace();
            }
        }

        System.out.println("*****************************");
        System.out.println(result);
        System.out.println("============================");
        return result;
    }

}

　　2.测试类

　　用自动化测试工具gauge进行测试

Use http request for creating user
=====================
Created by KSC on 2/7/2017

This is an executable specification file which follows markdown syntax.
Every heading in this file denotes a scenario. Every bulleted point denotes a step.

call on url with method get
----------------

tags: get

*the get method url is "http://localhost:8080" and parameters are
|name|age|
|----|---|
|tom|20|
|maike|22|



call on url with method post
---------------------------

tags: post

*the post method url is "https://www.baidu.com/" and parameters are
|name|age|
|----|---|
|marry|20|
|rose|22|