接口性能測試--JMeter

發表于:2015-04-20來源:uml.org.cn作者:不詳點擊數: 標簽:性能測試
1.JMeter Java Sampler介紹 setupTest做些初始化的工作,每個線程只執行一次 teardownTest做些清理工作,每個線程只執行一次

  1.JMeter Java Sampler介紹

  setupTest做些初始化的工作,每個線程只執行一次

  teardownTest做些清理工作,每個線程只執行一次

  runTest具體的測試執行工作,每個并發每次循環都將執行一次

  SampleResult記錄測試結果,result.sampleStart()一個事務開始,result.sampleEnd()一個事務結束

  main方法用于調試

01  package  com . xxx . yyy . perf;
02
03  import  org.apache.jmeter.config.Argument;
04  import  org.apache.jmeter.config.Arguments;
05  import  org.apache.jmeter.protocol.java.sampler.AbstractJavaSamplerClient;
06  import  org.apache.jmeter.protocol.java.sampler.JavaSamplerContext;
07  import  org.apache.jmeter.samplers.SampleResult;
08  import  org.springframework.context.ApplicationContext;
09  import  org.springframework.context.support.ClassPathXmlApplicationContext;
10
11  import  com.xxx.udb.client.PersonService;
12  import  com.xxx.udb.client.result.PersonResult;
13
14  /**
15  *
16  * @author flynewton
17  */
18  public  class  GetPersonByLongId  extends  AbstractJavaSamplerClient  {
19      private  static  final  ApplicationContext  ctx  =  new ClassPathXmlApplicationContext(
20              "spring-udb.xml");
21      private  static  PersonService  personService  =  null;
22      private  static  final  String  loginId  =  "00000sb";
23      private  static  final  String  siteId  =  "CN";
24
25
26      @Override
27      public  void  setupTest( JavaSamplerContext  context)  {
28          super . setupTest( context);
29          personService  = ( PersonService)  ctx . getBean( "personServiceClient");
30      }
31
32      @Override
33      public  void  teardownTest( JavaSamplerContext  context)  {
34          super . teardownTest( context);
35      }
36
37      public  SampleResult  runTest( JavaSamplerContext  arg0)  {
38          SampleResult  result  =  new  SampleResult();
39          PersonResult  personResult  =  null;
40
41          result . setSampleLabel( "result");
42
43          try  {
44              result . sampleStart();
45              personResult  =  personService . getPersonByLongId( siteId ,  loginId);
46              result . sampleEnd();
47          }  catch ( Throwable  t)  {
48              this . getLogger (). error( "Exception:"  +  t);
49              return  null;
50          }
51
52          if ( personResult  !=  null  &&  personResult . getCode()  ==  0)  {
53              result . setSamplerData( personResult . toString());
54              result . setSuccessful( true);
55          }  else  {
56              result . setSuccessful( false);
57          }
58
59          return  result;
60      }
61
62      static  void  printResult( SampleResult  res)  {
63          System . out . println( "test is success:"  +  res . isSuccessful()  +  " used:"
64                  + ( res . getEndTime()  -  res . getStartTime())  +  "ms "  +  " result:"
65                  +  res . getSampleLabel()  +  ":"  +  res . getSamplerData());
66      }
67
68      public  static  void  main( String []  args)  {
69          GetPersonByLongId  service  =  new  GetPersonByLongId();
70          JavaSamplerContext  context  =  new  JavaSamplerContext( null);
71          service . setupTest( context);
72          SampleResult  res1  =  service . runTest( context);
73          printResult( res1);
74          service . teardownTest( context);
75          System . exit( 0);
76      }
77
78  }

  2.多接口性能測試

  按照上面的方法進行測試,每個需要測試的接口和場景都需要寫一個這樣的測試類,對于有些具有相似初始化,清理等工作,只有具體的那行事務代碼不一樣的情況,會有很多重復的工作。如下:可以考慮采用反射的方式來解決這個問題,尤其是業務非常類似的接口和場景。當然,反射會帶來壓力機的性能消耗,但是這個可以通過調整JMeter的JVM參數和增加JMeter實例來解決。

  1)利用反射后的結構如下:

  2)AbstractServiceClient是一個抽象基類

package  com . xxx . yyy . perf . base;
import  java.lang.reflect.Method;
import  org.apache.jmeter.protocol.java.sampler.AbstractJavaSamplerClient;
import  org.apache.jmeter.protocol.java.sampler.JavaSamplerContext;
import  org.apache.jmeter.samplers.SampleResult;
/**
* Comment of AbstractServiceClient
*  @author flynewton
*/
public  abstract  class  AbstractServiceClient  extends  AbstractJavaSamplerClient {
public  Object  invokeTest( String  testName ,  JavaSamplerContext  context ,SampleResult  sample)  {
Method []  methods  =  this . getClass (). getMethods();
for ( Method  m  :  methods)  {
if ( m . getName (). equalsIgnoreCase( testName))  {
try  {
return  m . invoke( this ,  context , sample);
}  catch ( Throwable  t)  {
this . getLogger (). error( "execute method:"  +  testName  +  " falied" ,  t);
}
}
}
return  null;
}
}

原文轉自:http://www.uml.org.cn/Test/201401163.asp

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