使用Apache Server 的ab进行web请求压力测试

雨点打透心脏的1/2处 2022-07-16 07:42 168阅读 0赞

参考：http://www.cnblogs.com/spring3mvc/archive/2010/11/23/2414741.html

自己写代码经常是顺着逻辑写下去，写完后run一下，ok就玩完事了。直到遇到一个又一个的问题的时候才回头过来重新修改。这就是没有测试的悲剧。因此，在今后的代码中一定要尝试着去写测试，去做测试。

发现Apache Server下有个工具ab可以进行并发请求，正好有个需求想要知道并发下的访问情况。

# 1.下载 #

访问：http://httpd.apache.org/download.cgi

然后点击：

![686418-20160717123359998-631475843.png][]

然后跳到一个页面说只提供源码，自己编译，云彩。不过也提供了推荐第三方编译，选择第一个：

![686418-20160717123549170-1227239405.png][]

然后是选择镜像和版本，不要选择德国的：

![686418-20160717123727279-1862784881.png][]

# 2.安装 #

我这是买椟还珠的游戏，不想去了解Apache的功能，只想要ab。所以直接解压，然后在bin目录找到ab就可以了：

![686418-20160717123921311-1808933791.png][]

# 3.测试 #

输入ab就可以看到帮助文档

![ContractedBlock.gif][] ![ExpandedBlockStart.gif][]

D:\Java\httpd-2.4.23-x64-vc14\Apache24\bin>ab
    ab: wrong number of arguments
    Usage: ab [options] [http://]hostname[:port]/path
    Options are:
        -n requests     Number of requests to perform
        -c concurrency  Number of multiple requests to make at a time
        -t timelimit    Seconds to max. to spend on benchmarking
                        This implies -n 50000
        -s timeout      Seconds to max. wait for each response
                        Default is 30 seconds
        -b windowsize   Size of TCP send/receive buffer, in bytes
        -B address      Address to bind to when making outgoing connections
        -p postfile     File containing data to POST. Remember also to set -T
        -u putfile      File containing data to PUT. Remember also to set -T
        -T content-type Content-type header to use for POST/PUT data, eg.
                        'application/x-www-form-urlencoded'
                        Default is 'text/plain'
        -v verbosity    How much troubleshooting info to print
        -w              Print out results in HTML tables
        -i              Use HEAD instead of GET
        -x attributes   String to insert as table attributes
        -y attributes   String to insert as tr attributes
        -z attributes   String to insert as td or th attributes
        -C attribute    Add cookie, eg. 'Apache=1234'. (repeatable)
        -H attribute    Add Arbitrary header line, eg. 'Accept-Encoding: gzip'
                        Inserted after all normal header lines. (repeatable)
        -A attribute    Add Basic WWW Authentication, the attributes
                        are a colon separated username and password.
        -P attribute    Add Basic Proxy Authentication, the attributes
                        are a colon separated username and password.
        -X proxy:port   Proxyserver and port number to use
        -V              Print version number and exit
        -k              Use HTTP KeepAlive feature
        -d              Do not show percentiles served table.
        -S              Do not show confidence estimators and warnings.
        -q              Do not show progress when doing more than 150 requests
        -l              Accept variable document length (use this for dynamic pages)
        -g filename     Output collected data to gnuplot format file.
        -e filename     Output CSV file with percentages served
        -r              Don't exit on socket receive errors.
        -m method       Method name
        -h              Display usage information (this message)
    
    D:\Java\httpd-2.4.23-x64-vc14\Apache24\bin>

举例：

D:\\Java\\httpd-2.4.23-x64-vc14\\Apache24\\bin>ab -n 20 -c 10 localhost:8080/user/all

\-n表示一共请求20次

\-c表示并发量为10次。

也就是说，会进行两个并发，每次10个。

[686418-20160717123359998-631475843.png]: /images/20220716/497ad0d7f86449abbe7b2e41508dd268.png
[686418-20160717123549170-1227239405.png]: /images/20220716/040be1969ec34ce8878fbb8fbdb22768.png
[686418-20160717123727279-1862784881.png]: /images/20220716/0912863a0e3f4aafb6ab83d30f86275a.png
[686418-20160717123921311-1808933791.png]: /images/20220716/70806f1a67e047ab8acfcdf869c0fdf0.png
[ContractedBlock.gif]: http://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif
[ExpandedBlockStart.gif]: /images/20220716/e13da24c7996480881f0561edc20a53e.png