使用Apache自带ab工具测试WebService接口

进入<APACHE_HOME>/bin/目录下，运行ab可以看到如下结果：
D:\Apache2.2\bin>ab -h
Usage: ab [options] [http://]hostname[:port]/path
Options are:
    -n requests     Number of requests to perform
    -c concurrency  Number of multiple requests to make
    -t timelimit    Seconds to max. wait for responses
    -b windowsize   Size of TCP send/receive buffer, in bytes
    -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 for POSTing, 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.
    -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.
    -h              Display usage information (this message)


由上可以看出ab的各种用法，所以我决定采用Post的方法模拟WebService请求,具体如下：


ab -c 1000 -n 1000 -p login.txt -T Content-Type:text/xml;charset=utf-8 http://192.168.1.17:8080/JYWebservice/EntryPort?op=call


注意：用户数（-c）不能小于请求次数（-n）


经过测试发现，以上参数为必填；（WebService部分此处不做过多说明）


模拟请求的Body内容即login.txt，具体内容如下：
<?xml version="1.0" encoding="utf-8" standalone="no"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Body>
    <ns2:call xmlns:ns2="http://entry.ws.css.com/">
      <arg0>[{"password":"123456","userAccount":"1630001","sourceType":1,"sessionId":""}]</arg0>
      <arg1>LOGIN</arg1>
    </ns2:call>
  </soap:Body>
</soap:Envelope>


如此，运行即可得到测试结果:


D:\Apache2.2\bin>ab -c 100 -n 100 -p login.txt -T Content-Type:text/xml;charset=
utf-8 http://192.168.1.17:8080/JYWebservice/EntryPort?op=call
This is ApacheBench, Version 2.3 <$Revision: 655654 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking 192.168.1.17 (be patient).....done

Server Software:        Apache-Coyote/1.1
Server Hostname:        192.168.1.17
Server Port:            8080

Document Path:          /JYWebservice/EntryPort?op=call
Document Length:        1012 bytes

Concurrency Level:      100
Time taken for tests:   0.425 seconds
Complete requests:      100
Failed requests:        0
Write errors:           0
Total transferred:      126500 bytes
Total POSTed:           55700
HTML transferred:       101200 bytes
Requests per second:    235.29 [#/sec] (mean)--------------------------------------- >吞吐率
Time per request:       425.000 [ms] (mean)--------------------------------------------->请求用户等待时间
Time per request:       4.250 [ms] (mean, across all concurrent requests)----->请求服务器处理时间（即吞吐率的倒数）
Transfer rate:          290.67 [Kbytes/sec] received
                        127.99 kb/s sent
                        418.66 kb/s total


Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   0.3      0       1
Processing:   318  386  22.6    393     423
Waiting:      317  385  22.7    392     422
Total:        318  386  22.6    393     424


Percentage of the requests served within a certain time (ms)
  50%    393
  66%    398
  75%    402
  80%    404
  90%    409
  95%    414
  98%    420
  99%    424
 100%    424 (longest request)