接口性能测试--JMeter-测试-火龙果软件工程

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接口性能测试--JMeter

作者 lykangjia ，火龙果软件发布于 2014-1-16

1.JMeter Java Sampler介绍

setupTest做些初始化的工作，每个线程只执行一次

teardownTest做些清理工作，每个线程只执行一次

runTest具体的测试执行工作，每个并发每次循环都将执行一次

SampleResult记录测试结果，result.sampleStart()一个事务开始，result.sampleEnd()一个事务结束

main方法用于调试

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.多接口性能测试

按照上面的方法进行测试，每个需要测试的接口和场景都需要写一个这样的测试类，对于有些具有相似初始化，清理等工作，只有具体的那行事务代码不一样的情况，会有很多重复的工作。如下：可以考虑采用反射的方式来解决这个问题，尤其是业务非常类似的接口和场景。当然，反射会带来压力机的性能消耗，但是这个可以通过调整JMeter的JVM参数和增加JMeter实例来解决。

1)利用反射后的结构如下：

2)AbstractServiceClient是一个抽象基类

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;
}
}

3)GetPersonTest为某一类具有相似业务场景的测试类

其中 getDefaultParameters方法设置默认参数：test传入具体要执行的测试方法；info传入日志级别，利用main方法进行调试时设置为true，真正进行性能测试的时候设置为false

package  com . xxx . yyy . perf;
import  org.apache.jmeter.config.Argument;
import  org.apache.jmeter.config.Arguments;
import  org.apache.jmeter.protocol.java.sampler.JavaSamplerContext;
import  org.apache.jmeter.samplers.SampleResult;
import  org.springframework.context.ApplicationContext;
import  org.springframework.context.support.ClassPathXmlApplicationContext;
import  com.xxx.udb.client.PersonService;
import  com.xxx.udb.client.result.MultiPersonResult;
import  com.xxx.udb.client.result.PersonResult;
import  com.xxx.udb.perf.base.AbstractServiceClient;
/**
* Test get person
* @author flynewton
*/
public  class  GetPersonTest  extends  AbstractServiceClient  {
private  static  final  ApplicationContext  ctx  =  new ClassPathXmlApplicationContext(
"spring-udb.xml");
private  static  PersonService  personService  =  null;
private  static  String  loginIdCache  =  "00000sb";
private  static  String  loginIdWithoutCache  =  "01haytham";
private  static  String  siteIdCache  =  "CN";
private  static  String  siteIdWithoutCache  =  "IN";
private  static  String  alimailCn  =  "gchg2008@zzgcchen.cn";
private  static  String  alimailUdb  =  "000001@lvcuinm.com.cn";
private  static  String  uidCache  =  "300113578";
private  static  String  uidWithoutCache  =  "in5002997";
private  static  String  emailCache  =  "00000sb@alibaba-test.com";
private  static  String  emailWithoutCache  =  "5002997@alibaba-inc.com";
@Override
public  void  setupTest( JavaSamplerContext  context)  {
super . setupTest( context);
personService  = ( PersonService)  ctx . getBean( "personServiceClient");
}
public  Arguments  getDefaultParameters()  {
Arguments  params  =  new  Arguments();
params . addArgument( "test" ,  "testMethod");
params . addArgument( "info" ,  "false");
return  params;
}
@Override
public  void  teardownTest( JavaSamplerContext  context)  {
super . teardownTest( context);
}
public  Object  testGetPersonByLongIdViaCache( JavaSamplerContext  arg0 ,
SampleResult  sample)  {
PersonResult  personResult  =  null;
try  {
sample . sampleStart();
personResult  =  personService . getPersonByLongId( siteIdCache , loginIdCache);
sample . sampleEnd();
}  catch ( Throwable  t)  {
this . getLogger (). error( "Exception:"  +  t);
return  null;
}
return  personResult;
}
public  Object  testGetPersonByLongIdWithoutCache( JavaSamplerContext  arg0 ,
SampleResult  sample)  {
PersonResult  personResult  =  null;
try  {
sample . sampleStart();
personResult  =  personService . getPersonByLongId( siteIdWithoutCache , loginIdWithoutCache);
sample . sampleEnd();
}  catch ( Throwable  t)  {
this . getLogger (). error( "Exception:"  +  t);
return  null;
}
return  personResult;
}
public  Object  testGetPersonByAlimailCN( JavaSamplerContext  arg0 ,
SampleResult  sample)  {
PersonResult  personResult  =  null;
try  {
sample . sampleStart();