使用Loadrunner進行http接口壓力測試

業務描述：

　　在業務系統里進行查詢操作，查詢的結果是通過請求http接口,從系統中處理並將結果以json字符串返回。

 

 本文就講述使用Loadrunner對此類接口進行壓力測試並記錄相關的性能指標數據：

一.安裝Loadrunner

本次測試過程使用Loadrunner 11.0版本。

二.部署環境

1.接口服務器一台;

2.用於運行Loadrunner的壓力測試機1台或N台 ，在條件允許下，盡可能提供高配置的CPU 和內存。

3.接口服務器和壓力測試機建議應部署於同一個局域網內,否則測試過程和結果將受到網絡帶寬因素的影響無法順利進行。

三.編寫測試腳本

方法一. 通過java編寫測試類,以jar包的方式引入Loadrunner進行測試。

優點:便於解析接口響應結果,同時避免由於LR腳本編寫不規范或配置問題，導致測試過程引發的未知錯誤。

條件:運行loadrunner的機器需要安裝jdk1.6的版本。

1.編寫java測試類: CTLPTest.java,如下代碼

package Demo;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.net.URL;
import java.net.URLConnection;
import java.util.Iterator;
import java.util.Map;

public class HttpRequestor {
    
    private String charset = "utf-8";
    private Integer connectTimeout = null;
    private Integer socketTimeout = null;
    private String proxyHost = null;
    private Integer proxyPort = null;
    
    /**
     * Do GET request
     * @param url
     * @return
     * @throws Exception
     * @throws IOException
     */
    public int doGet(String url) throws Exception {
        
        int returnCount = -1;
        
        URL localURL = new URL(url);
        
        URLConnection connection = openConnection(localURL);
        HttpURLConnection httpURLConnection = (HttpURLConnection)connection;
        
        httpURLConnection.setRequestProperty("Authorization", "Bearer 902c001a-a4d5-4f4c-8b44-661e7242787b");
        httpURLConnection.setRequestProperty("Accept-Charset", charset);
        
        InputStream inputStream = null;
        InputStreamReader inputStreamReader = null;
        BufferedReader reader = null;
        StringBuffer resultBuffer = new StringBuffer();
        String tempLine = null;
        
        if (httpURLConnection.getResponseCode() >= 300) {
            throw new Exception("HTTP Request is not success, Response code is " + httpURLConnection.getResponseCode());
        }
        
        try {
            inputStream = httpURLConnection.getInputStream();
            inputStreamReader = new InputStreamReader(inputStream);
            reader = new BufferedReader(inputStreamReader);
            
            while ((tempLine = reader.readLine()) != null) {
                resultBuffer.append(tempLine);
            }
            
            //將響應流轉換成字符串
            String res = new String(resultBuffer.toString());
            //根據實際情況，判斷響應結果,並設置返回值
            boolean of = res.contains("\"code\":1");
            if (of) {
                returnCount = 1;
            } else {
                returnCount = -1;
            }

        }
        catch(Exception e)
        {
             returnCount = -1;            
        }
        finally {
            
            if (reader != null) {
                reader.close();
            }
            
            if (inputStreamReader != null) {
                inputStreamReader.close();
            }
            
            if (inputStream != null) {
                inputStream.close();
            }
            
        }
        System.out.println(resultBuffer.toString());
        
        return returnCount;
    }
    
    /**
     * Do POST request
     * @param url
     * @param parameterMap
     * @return
     * @throws Exception 
     */
    public int doPost(String url, Map parameterMap) throws Exception {
        
        int returnCount = -1;
        
        /* Translate parameter map to parameter date string */
        StringBuffer parameterBuffer = new StringBuffer();
        if (parameterMap != null) {
            Iterator iterator = parameterMap.keySet().iterator();
            String key = null;
            String value = null;
            while (iterator.hasNext()) {
                key = (String)iterator.next();
                if (parameterMap.get(key) != null) {
                    value = (String)parameterMap.get(key);
                } else {
                    value = "";
                }
                
                parameterBuffer.append(key).append("=").append(value);
                if (iterator.hasNext()) {
                    parameterBuffer.append("&");
                }
            }
        }
        
        System.out.println("POST parameter : " + parameterBuffer.toString());
        
        URL localURL = new URL(url);
        
        URLConnection connection = openConnection(localURL);
        HttpURLConnection httpURLConnection = (HttpURLConnection)connection;
        
        httpURLConnection.setDoOutput(true);
        httpURLConnection.setRequestMethod("POST");
        httpURLConnection.setRequestProperty("Accept-Charset", charset);
        httpURLConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
        httpURLConnection.setRequestProperty("Content-Length", String.valueOf(parameterBuffer.length()));
        httpURLConnection.setRequestProperty("Authorization", "Bearer 902c001a-a4d5-4f4c-8b44-661e7242787b");
        
        OutputStream outputStream = null;
        OutputStreamWriter outputStreamWriter = null;
        InputStream inputStream = null;
        InputStreamReader inputStreamReader = null;
        BufferedReader reader = null;
        StringBuffer resultBuffer = new StringBuffer();
        String tempLine = null;
        
        try {
            outputStream = httpURLConnection.getOutputStream();
            outputStreamWriter = new OutputStreamWriter(outputStream);
            
            outputStreamWriter.write(parameterBuffer.toString());
            outputStreamWriter.flush();
            
            if (httpURLConnection.getResponseCode() >= 300) {
                throw new Exception("HTTP Request is not success, Response code is " + httpURLConnection.getResponseCode());
            }
            
            inputStream = httpURLConnection.getInputStream();
            inputStreamReader = new InputStreamReader(inputStream);
            reader = new BufferedReader(inputStreamReader);
            
            while ((tempLine = reader.readLine()) != null) {
                resultBuffer.append(tempLine);
            }
            
            //將響應流轉換成字符串
            String res = new String(resultBuffer.toString());
            //根據實際情況，判斷響應結果,並設置返回值
            boolean of = res.contains("\"code\":1");
            if (of) {
                returnCount = 1;
            } else {
                returnCount = -1;
            }
            
        } finally {
            
            if (outputStreamWriter != null) {
                outputStreamWriter.close();
            }
            
            if (outputStream != null) {
                outputStream.close();
            }
            
            if (reader != null) {
                reader.close();
            }
            
            if (inputStreamReader != null) {
                inputStreamReader.close();
            }
            
            if (inputStream != null) {
                inputStream.close();
            }
            
        }

        System.out.println(resultBuffer.toString());
        
        return returnCount;
    }

    private URLConnection openConnection(URL localURL) throws IOException {
        URLConnection connection;
        if (proxyHost != null && proxyPort != null) {
            Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(proxyHost, proxyPort));
            connection = localURL.openConnection(proxy);
        } else {
            connection = localURL.openConnection();
        }
        return connection;
    }
    
    /**
     * Render request according setting
     * @param request
     */
    private void renderRequest(URLConnection connection) {
        
        if (connectTimeout != null) {
            connection.setConnectTimeout(connectTimeout);
        }
        
        if (socketTimeout != null) {
            connection.setReadTimeout(socketTimeout);
        }
        
    }

    /*
     * Getter & Setter
     */
    public Integer getConnectTimeout() {
        return connectTimeout;
    }

    public void setConnectTimeout(Integer connectTimeout) {
        this.connectTimeout = connectTimeout;
    }

    public Integer getSocketTimeout() {
        return socketTimeout;
    }

    public void setSocketTimeout(Integer socketTimeout) {
        this.socketTimeout = socketTimeout;
    }

    public String getProxyHost() {
        return proxyHost;
    }

    public void setProxyHost(String proxyHost) {
        this.proxyHost = proxyHost;
    }

    public Integer getProxyPort() {
        return proxyPort;
    }

    public void setProxyPort(Integer proxyPort) {
        this.proxyPort = proxyPort;
    }

    public String getCharset() {
        return charset;
    }

    public void setCharset(String charset) {
        this.charset = charset;
    }
    
}

package Demo;


import java.util.HashMap;
import java.util.Map;


public class CTLPTest {

    
    /**
     * @param args
     */
    public static void main(String[] args) {
         
        try
        {
        /* Get Request */
        System.out.println(new HttpRequestor().doGet("http://10.201.76.152:8080/order/carlevel/list"));
        
        
        /* 登錄 */
        Map dataMap = new HashMap();
        dataMap.put("client_type", "2");
        dataMap.put("username", "13200010001");
        dataMap.put("password", "174696");
        System.out.println(new HttpRequestor().doPost("http://10.201.76.152:8080/oauth/oauthlogin/verify/login", dataMap));
        
        
        
        }catch(Exception ex)
        {
            
        }
    }
    
}

 

2.將測試類導出為jar包 : carlevel.jar

 

3.Loadrunner創建java測試類

創建java協議腳本

添加代碼后：

4.設置環境變量

5.設置安裝的jdk位置目錄

6.導入jar包

7.試運行，查看結果

 

說明:至此，完成了java腳本的編寫和基本測試，接下來我們就可以使用loadrunner的進行壓力測試了。

 

四.設置場景、運行場景

略

 

五.分析

略

 

小結：

　　一直都只會用jmeter對http接口進行測試，今天剛好有時間，就順便學習下用loadrunner如何進行http接口壓力測試，並嘗試成功，就留下筆記，以便后續工作中使用。

 

java工程附件下載