tomcat配置接口訪問時間

此次恰好用到，親測可用。參照：http://www.javashuo.com/article/p-uhmdmcvk-ct.html

 

 

項目中有些頁面時延不穩定，須要看每次接口調用時延，怎麼看，有兩種方法：一種是直接去catalina.out日誌中看，一種是直接去localhost_access_log日誌中看，第一種須要在代碼中實現時延的計算，第二種方法只需在server.xml中加一個簡單的配置。這裏只說第二種：

　　一、打開tomcat下conf/server.xml，先看Host節點配置：

      <Host name="localhost"  appBase="webapps"
            unpackWARs="true" autoDeploy="true">

        <!-- SingleSignOn valve, share authentication between web applications
             Documentation at: /docs/config/valve.html -->
        <!--
        <Valve className="org.apache.catalina.authenticator.SingleSignOn" />
        -->

        <!-- Access log processes all example.
             Documentation at: /docs/config/valve.html
             Note: The pattern used is equivalent to using pattern="common" -->
        <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
               prefix="localhost_access_log" suffix=".txt"
               pattern="%h %l %u %t &quot;%r&quot; %s %b" />

      </Host>

　　二、這時localhost_access_log最後一個是文件大小：

10.73.154.72 - - [12/Mar/2018:10:04:47 +0800] "POST /ms.sns.snsService/rewardHis HTTP/1.1" 200 133

　　三、在conf/server.xml的Host節點中Value節點最後的pattern參數中添加% D

        <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
               prefix="localhost_access_log" suffix=".txt"
               pattern="%h %l %u %t &quot;%r&quot; %s %b %D" />

　　四、從新打開localhost_access_log，加上了時延大小，單位是毫秒：

10.125.40.179 - - [21/May/2018:14:12:22 +0800] "POST /ms.bkticket.myBookTicketService/getBookTicketRechargeList HTTP/1.1" 200 2519 62
10.125.40.179 - - [21/May/2018:14:12:22 +0800] "POST /ms.bkticket.myBookTicketService/getBookTicketRemainBalance HTTP/1.1" 200 589 72
10.125.40.179 - - [21/May/2018:14:12:23 +0800] "POST /ms.bkticket.myBookTicketService/getBookTicketRechargeList HTTP/1.1" 200 2096 47