Loadrunner监控Tomcat 脚本编辑修改

这里使用LoadRunner监控tomcat是通过使用LR编写相应的代码进行监控，其原理是通过LoadRunner的关联技术获取tomcat自带的监控首页的性能数据，来获取相应的监控性能指标，然后通过lr_user_data_point（）函数将监控到的数据添加数据到图表中，以下是部分代码：

//定义tomcat内存使用情况的监视器事务；

lr_start_transaction(“monitor tomcat”);

//保存3个参数；

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);

//通过LR去访问tomcat监控页

web_set_user(“admin”,”123456″,”192.168.31.91″);

web_url(“status”,

“URL=http://192.168.31.91/manager/status”,

“Resource=0″,

“RecContentType=text/html”,

“Referer=”,

“Snapshot=t1.inf”,

“Mode=HTTP”,

LAST);

lr_end_transaction(“monitor tomcat”, LR_AUTO);

// Tomcat JVM metrics 使用lr_user_data_point（）添加数据到图表中

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}”)));

上面的格式有点异常，试试下面的：

 lr_user_data_point("JVM_FreeMemory",atof(lr_eval_string("JVM_FreeMemory")));

 lr_user_data_point("JVM_TotalMemory",atof(lr_eval_string("JVM_TotalMemory")));

lr_user_data_point("JVM_MaxMemory",atof(lr_eval_string("JVM_MaxMemory")));

上面脚本不全，经过本人多次试验最终脚本：

Action()

{   
double atof(const char * string);

    lr_start_transaction("admin tomcat");

web_set_max_html_param_len("99999999");

    web_reg_save_param("JVMFreeMemory",

                      "LB=Free memory: ",

                      "RB= MB",

                      "Ord=1",

                      LAST);

    web_set_max_html_param_len("99999999");

web_reg_save_param("JVMTotalMemory",

                      "LB=Total memory: ",

                      "RB= MB",

                      "Ord=1",

                      LAST);

    web_set_max_html_param_len("99999999");

    web_reg_save_param("JVMMaxMemory",

                      "LB=Max memory: ",

                      "RB= MB",

                      "Ord=1",

                      LAST);

   

    web_set_user("admin","1234","172.16.5.16:8080");

web_url("status",

            "URL=http://172.16.5.16:8080/manager/status",

            "Resource=0",

            "Referer=http://172.16.5.16:8080/manager/status",

            "Mode=HTML",

            LAST);

lr_end_transaction("admin tomcat", LR_AUTO);

   lr_user_data_point("JVMFreeMemory",atof(lr_eval_string("JVMFreeMemory")));

   lr_user_data_point("JVMTotalMemory",atof(lr_eval_string("JVMTotalMemory")));

  lr_user_data_point("JVMMaxMemory",atof(lr_eval_string("JVMMaxMemory")));

return 0;

}

  这个脚本才会完整跑通