http://wangxuliangboy.javaeye.com/blog/235081

如何在WINDOW下配置TOMCAT APR：

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APR是什么呢，（ Tomcat can use the Apache Portable Runtime to provide superior scalability, performance, and better integration with native server technologies. ）

Windows下的安裝配置與使用
1、先去 http://tomcat.heanet.ie/native/ 下載編譯好的 tcnative-1.dll 文件

2、把tcnative-1.dll文件放在Tomcat的bin目錄下

然后啟動(dòng)TOMCAT，如果看到以下信息：

2008-8-31 17:28:59 org.apache.coyote.http11.Http11AprProtocol start
信息: Starting Coyote HTTP/1.1 on http-8080
2008-8-31 17:28:59 org.apache.coyote.ajp.AjpAprProtocol start］則配置成功

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然后你可以用APACHE的AB命令測(cè)試下效果.

? ab -n 1000 -c 300 http://localhost:8080/turbine/index.jsp

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相關(guān)APR的參數(shù)配置可以參考以下文檔:

???????? http://tomcat.apache.org/tomcat-5.5-doc/apr.html

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如何查看TOMCAT的并發(fā)訪問(wèn)量：

? 我們進(jìn)入TOMCAT服務(wù)管理頁(yè)面（ http://localhost:8080/manager/status ）,可以看到下面這段文字

http-8080

Max threads: 1000 Min spare threads: 0 Max spare threads: 0 Current thread count: 303 Current thread busy: 234 Keeped alive sockets count: 0
Max processing time: 23531 ms Processing time: 29287.717 s Request count: 2980 Error count: 0 Bytes received: 0.00 MB Bytes sent: 12.61 MB

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Current thread count: 303? 這個(gè)參數(shù)則代表當(dāng)前TOMCAT的并發(fā)訪問(wèn)量

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這是我TOMCAT服務(wù)器的配置:

?<Connector port="8080" maxHttpHeaderSize="8192" pollerSize="10025"
?????????????? maxThreads="1000" minSpareThreads="25" maxSpareThreads="75"
?????????????? enableLookups="false" redirectPort="8443" acceptCount="100"
????? compression="on" compressionMinSize="2048"???
compressableMimeType="text/html,text/xml,text/javascript,text/css,text/plain"?
?????????????? connectionTimeout="20000" disableUploadTimeout="true" sendfileSize="2048" />

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將TOMCAT日志更改為L(zhǎng)OG4J日志輸出

?? 把commons-logging.jar,log4j-1.2.13.jar的兩個(gè)JAR拷貝到tomcat_home/common/lib下面.

? 然后在將log4j.properties拷貝到tomcat_home/common/classes下面