语源科技BlogJava-rainingcnhttp://www.blogjava.net/rainingcn/zh-cnMon, 13 Apr 2026 08:52:51 GMTMon, 13 Apr 2026 08:52:51 GMT60DOS命令：获得当前日期http://www.blogjava.net/rainingcn/archive/2011/03/17/346457.htmlrainingcnrainingcnThu, 17 Mar 2011 03:43:00 GMThttp://www.blogjava.net/rainingcn/archive/2011/03/17/346457.htmlhttp://www.blogjava.net/rainingcn/comments/346457.htmlhttp://www.blogjava.net/rainingcn/archive/2011/03/17/346457.html#Feedback0http://www.blogjava.net/rainingcn/comments/commentRss/346457.htmlhttp://www.blogjava.net/rainingcn/services/trackbacks/346457.html%date:~0,10% %time:~0,8% 日期格式
2011-03-17 11:38:06





rainingcn 2011-03-17 11:43 发表评论
]]>使用Maven2 搭建Struts2 http://www.blogjava.net/rainingcn/archive/2011/03/16/346390.htmlrainingcnrainingcnWed, 16 Mar 2011 07:02:00 GMThttp://www.blogjava.net/rainingcn/archive/2011/03/16/346390.htmlhttp://www.blogjava.net/rainingcn/comments/346390.htmlhttp://www.blogjava.net/rainingcn/archive/2011/03/16/346390.html#Feedback0http://www.blogjava.net/rainingcn/comments/commentRss/346390.htmlhttp://www.blogjava.net/rainingcn/services/trackbacks/346390.html1. 使用Maven的maven-archetype-webapp 创建
mvn archetype:create -DgroupId=com.test -DartifactId=tutorial -DarchetypeArtifactId=maven-archetype-webapp
2.修改pom.xml。在build属性中增加jetty配置
<build>
    <finalName>tutorial</finalName>
    <plugins>
         <plugin>
              <groupId>org.mortbay.jetty</groupId>
              <artifactId>maven-jetty-plugin</artifactId>
         </plugin>
        <!--
        <plugin>               
            <groupId>org.codehaus.mojo</groupId>               
            <artifactId>tomcat-maven-plugin</artifactId>
        </plugin>
        -->
     </plugins>
  </build>
   2.1 可以输入 mvn jetty:run  启动jetty容器
3.增加struts2相关配置。具体的pom.xml文件
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.test</groupId>
  <artifactId>tutorial</artifactId>
  <packaging>war</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>tutorial Maven Webapp</name>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.8.1</version>
      <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.apache.struts</groupId>
        <artifactId>struts2-core</artifactId>
        <version>2.2.1</version>
    </dependency>

    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.14</version>
    </dependency>
    <dependency>
        <groupId>javassist</groupId>
        <artifactId>javassist</artifactId>
        <version>3.8.0.GA</version>
    </dependency>
  </dependencies>
  <build>
    <finalName>tutorial</finalName>
    <plugins>
         <plugin>
              <groupId>org.mortbay.jetty</groupId>
              <artifactId>maven-jetty-plugin</artifactId>
         </plugin>
        <!--
        <plugin>               
            <groupId>org.codehaus.mojo</groupId>               
            <artifactId>tomcat-maven-plugin</artifactId>
        </plugin>
        -->
     </plugins>
  </build>
</project>

4.导入到相关的IDE工具。如idea
mvn idea:idea
   4.1 idea中的目录结构

5.写个class 看下能否正常跳转。注意点：java类的源目录为
src
│  └─main
│      ├─java
public class Test {
    public String execute() {
        return "success";
    }
}
对应的struts.xml
<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE struts PUBLIC
        "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
        "http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>
    <package name="default" extends="struts-default" namespace="/">
        <action name="test" class="com.test.Test">
            <result>index.jsp</result>
        </action>
    </package>
</struts>
6. url: http://localhost:8080/test

7.参考:
  

Building Web Applications with Maven 2

Create Struts 2 Web Application Using Maven To Manage Artifacts and To Build The Application
 

rainingcn 2011-03-16 15:02 发表评论
]]>idea配置sourcesafehttp://www.blogjava.net/rainingcn/archive/2011/02/12/344143.htmlrainingcnrainingcnSat, 12 Feb 2011 08:13:00 GMThttp://www.blogjava.net/rainingcn/archive/2011/02/12/344143.htmlhttp://www.blogjava.net/rainingcn/comments/344143.htmlhttp://www.blogjava.net/rainingcn/archive/2011/02/12/344143.html#Feedback0http://www.blogjava.net/rainingcn/comments/commentRss/344143.htmlhttp://www.blogjava.net/rainingcn/services/trackbacks/344143.html 具体步骤
1.配置SourceSafe

2.配置idea项目工程文件和SS上的工程文件




rainingcn 2011-02-12 16:13 发表评论
]]>linux apache 进程数与加载的模块数http://www.blogjava.net/rainingcn/archive/2010/12/20/341178.htmlrainingcnrainingcnMon, 20 Dec 2010 08:32:00 GMThttp://www.blogjava.net/rainingcn/archive/2010/12/20/341178.htmlhttp://www.blogjava.net/rainingcn/comments/341178.htmlhttp://www.blogjava.net/rainingcn/archive/2010/12/20/341178.html#Feedback0http://www.blogjava.net/rainingcn/comments/commentRss/341178.htmlhttp://www.blogjava.net/rainingcn/services/trackbacks/341178.html 这个在多并发的情况下会占用很大资源。
查看方式：
1.查看httpd进程数
ps -ef|grep httpd|wc -l
2.查看打开的文件模块数
 lsof |grep /usr/lib64/httpd/modules/mod_auth_basic.so|wc -l
解决方式：
重编译apache，
--enable-mods-shared=most




rainingcn 2010-12-20 16:32 发表评论
]]>TCP close_wait 分析http://www.blogjava.net/rainingcn/archive/2010/12/16/340878.htmlrainingcnrainingcnThu, 16 Dec 2010 05:40:00 GMThttp://www.blogjava.net/rainingcn/archive/2010/12/16/340878.htmlhttp://www.blogjava.net/rainingcn/comments/340878.htmlhttp://www.blogjava.net/rainingcn/archive/2010/12/16/340878.html#Feedback0http://www.blogjava.net/rainingcn/comments/commentRss/340878.htmlhttp://www.blogjava.net/rainingcn/services/trackbacks/340878.htmlhttp://ahuaxuan.javaeye.com/blog/657511
图：

2.系统产生大量close_wait的原因是在大并发的情况下由于丢包或者系统压力导致来不及处理数据包的原因，导致socket没有得到很好的关闭。所以这个时候要调优下linux的系统参数
2.1调优参数，可以参看http://space.itpub.net/35489/viewspace-600807
2.2 参数说明，可以参看http://haka.sharera.com/blog/BlogTopic/32309.htm
2.3我目前结合系统修改后的配置：
 net.ipv4.tcp_keepalive_time=600
 net.ipv4.tcp_keepalive_probes=5
 net.ipv4.tcp_keepalive_intvl=15
3.可以lsof命令，查看大量close_wait所在端口的对应文件信息。
  参看http://www.ibm.com/developerworks/cn/aix/library/au-lsof.html



rainingcn 2010-12-16 13:40 发表评论
]]>linux 服务器监控脚本http://www.blogjava.net/rainingcn/archive/2010/12/14/340661.htmlrainingcnrainingcnTue, 14 Dec 2010 08:10:00 GMThttp://www.blogjava.net/rainingcn/archive/2010/12/14/340661.htmlhttp://www.blogjava.net/rainingcn/comments/340661.htmlhttp://www.blogjava.net/rainingcn/archive/2010/12/14/340661.html#Feedback0http://www.blogjava.net/rainingcn/comments/commentRss/340661.htmlhttp://www.blogjava.net/rainingcn/services/trackbacks/340661.html 但是秒级的需要自己写shell脚本。
比如监控apache:
#!/bin/sh
echo "==========1.httpd==2.total connection==3.wait connection====4.jboss connection"
rp=1
while rp=1
do
echo "================="
date -d today +"%T"
#show apache thread count
ps -ef|grep httpd|wc -l
#show total clients
netstat -ant|grep 10.108.10.2|wc -l
#show time_wait or ESTABLISHED clients
netstat -ant|grep ffff|wc -l
#show jboss connection
netstat -ant|grep 10.108.7.7|wc -l
sleep 1
done

运行脚本前莫忘 chmod +x filename


rainingcn 2010-12-14 16:10 发表评论
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