在使用jmeter與jenkins對接時，發現默認打印出來的日誌就是正常的summary統計，如果要查看日誌，只能通過jmeter.log去查看。

來來來，我們一起溫習下jmeter的命令行參數

--?
        print command line options and exit
    -h, --help
        print usage information and exit
    -v, --version
        print the version information and exit
    -p, --propfile <argument>
        the jmeter property file to use
    
 
-q, --addprop <argument>
        additional JMeter property file(s)
    -t, --testfile <argument>
        the jmeter test(.jmx) file to run. "-t LAST" will load last 
        used file
    -l, --logfile <argument>
        the file to log samples to
    -i, --jmeterlogconf <argument>
        jmeter logging configuration file (log4j2.xml)
    
 
-j, --jmeterlogfile <argument>
        jmeter run log file (jmeter.log)
    -n, --nongui
        run JMeter in nongui mode
    -s, --server
        run the JMeter server
    -H, --proxyHost <argument>
        Set a proxy server for JMeter to use
    -P, --proxyPort <argument>
        Set proxy server port 
 
for JMeter to use
    -N, --nonProxyHosts <argument>
        Set nonproxy host list (e.g. *.apache.org|localhost)
    -u, --username <argument>
        Set username for proxy server that JMeter is to use
    -a, --password <argument>
        Set password for proxy server that JMeter is to use
    -J, --jmeterproperty <argument>=<value>
        Define additional JMeter properties
    -G, --globalproperty <argument>=<value>
        Define Global properties (sent to servers)
        e.g. -Gport=123
         or -Gglobal.properties
    -D, --systemproperty <argument>=<value>
        Define additional system properties
    -S, --systemPropertyFile <argument>
        additional system property file(s)
    -f, --forceDeleteResultFile
        force delete existing results files before start the test
    -L, --loglevel <argument>=<value>
        [category=]level e.g. jorphan=INFO, jmeter.util=DEBUG or com
        .example.foo=WARN
    -r, --runremote
        Start remote servers (as defined in remote_hosts)
    -R, --remotestart <argument>
        Start these remote servers (overrides remote_hosts)
    -d, --homedir <argument>
        the jmeter home directory to use
    -X, --remoteexit
        Exit the remote servers at end of test (non-GUI)
    -g, --reportonly <argument>
        generate report dashboard only, from a test results file
    -e, --reportatendofloadtests
        generate report dashboard after load test
    -o, --reportoutputfolder <argument>
        output folder for report dashboard

其中-l表示將請求日誌另存為，-j表示將jmter運行文件另存為

我們在jmeter非界面中輸出的日誌叫標準輸出，因此，如果想要將對應日誌輸出至標準日誌，只要重定向為/dev/stdout

如:

jmeter.sh -n -t Base.jmx -j /dev/stdout ----將jmeter運行日誌輸出在屏幕中

jmeter.sh -n -t Base.jmx -l /dev/stdout ---將請求日誌輸出在屏幕中

重定向至標準輸出後，對應的日誌文件就為空了

jmeter之結果重定向