LoadRunner 实现监控Tomcat

LoadRunenr没有监控Tomcat的专用监控器，为了用lr达到监控tomcat的目的可以通过打开Tomcat自带的Status页面之后，利用lr的关联技术得到相关的数据，把数据输出到lr自定义的监控器中。

1、打开Tomcat的status页面，方法为编辑Tomcat的conf目录下的tomcat-users.xml文件，在文件中添加

 <tomcat-users>
   <role rolename="manager"/>
   <user username="admin" password="admin" roles="manager"/>
 </tomcat-users>

2、LR脚本开发

 lr_start_transaction("monitor tomcat");
   web_reg_save_param("JVMFreeMemory",
      "LB=Free memory: ",
      "RB= MB",
      "Ord=1",
    LAST);
    web_reg_save_param("JVMTotalMemory",
    "LB=Total memory: ",
    "RB= MB",
    "Ord=1",
    LAST);

     web_reg_save_param("JVMMaxMemory",
      "LB=Max memory: ",
      "RB= MB",
      "Ord=1",
     LAST);

     web_url("status",
         "URL=http://{ServerName}/manager/status",
         "Resource=0",
         "RecContentType=text/html",
         "Referer=",
         "Snapshot=t1.inf",
         "Mode=HTTP",
     LAST);

    lr_end_transaction("monitor tomcat", LR_AUTO);

 // Tomcat JVM metrics
   lr_user_data_point("Tomcat JVM Free memory", atof(lr_eval_string("{JVMFreeMemory}")));
   lr_user_data_point("Tomcat JVM Total memory", atof(lr_eval_string("{JVMTotalMemory}")));
    lr_user_data_point("Tomcat JVM Max memory", atof(lr_eval_string("{JVMMaxMemory}")));

搞定！