tomcat监控脚本，可获取应用数、日志大小、内存、JVM等信息

脚本调用: ./tomcat_monitor -u admin -p admin -h 127.0.0.1 -P 8080 返回信息: { "static_tomcat_version":8, "tomcat_server_status":1, "application0":{ "status":"running", "path":"/app1", "active_sessions":0, "name":"app1" }, .... "tomcat_application_count":6, "free_memory":2474.21, "total_memory":5939.25, "max_memory":5939.25, "available_memory":2474.21, "used_memory":3465.04, "percent_used_memory":58.3413337765,