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Maven开发web项目配置文件

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
         version="4.0">

</web-app>

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.zck</groupId>
    <artifactId>login-demo</artifactId>
    <version>1.0.0-SNAPSHOT</version>
    <packaging>war</packaging>
    <dependencies>
        <!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>4.0.1</version>
            <scope>provided</scope>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.slf4j/log4j-over-slf4j -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>log4j-over-slf4j</artifactId>
            <version>1.7.30</version>
        </dependency>


    </dependencies>
</project>

servlet声明

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
         version="4.0">
    <display-name>login-demo</display-name>
    <servlet>
        <servlet-name>LoginController</servlet-name>
        <servlet-class>com.zck.login.web.controller.LoginController</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>LoginController</servlet-name>
        <url-pattern>/login</url-pattern>
    </servlet-mapping>
</web-app>

index.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>登录</title>
</head>
<body>
    <%--注意action名直接是servlet名，不用加/--%>
    <form action="login" method="post">
        <input name="loginId" type="text"/>
        <input name="loginPwd" type="password"/>
        <input type="submit" value="登录"/>
    </form>
</body>
</html>

log4j.properties

##Log4J的配置之简单使它遍及于越来越多的应用中了   

##Log4J配置文件实现了输出到控制台、文件、回滚文件、发送日志邮件、输出到数据库日志表、自定义标签等全套功能。择其一二使用就够用了。   

##此文件（log4j.properties）内容来自网络，非本文作者liigo原创。   
log4j.rootLogger = DEBUG, CONSOLE,A1
log4j.addivity.org.apache = true
        
# 应用于控制台   
log4j.appender.CONSOLE = org.apache.log4j.ConsoleAppender
log4j.appender.Threshold = DEBUG
log4j.appender.CONSOLE.Target = System.out
log4j.appender.CONSOLE.layout = org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern = [framework]  % d  -   % c  -%- 4r [ % t]  %- 5p  % c  % x  -   % m % n
#log4j.appender.CONSOLE.layout.ConversionPattern = [start] % d  {DATE} [DATE] % n % p[PRIORITY] % n % x[NDC] % n % t[THREAD] n % c[CATEGORY] % n % m[MESSAGE] % n % n   

#应用于文件   
log4j.appender.FILE = org.apache.log4j.FileAppender
log4j.appender.FILE.File = file.log
log4j.appender.FILE.Append = false
log4j.appender.FILE.layout = org.apache.log4j.PatternLayout
log4j.appender.FILE.layout.ConversionPattern = [framework]  % d  -   % c  -%- 4r [ % t]  %- 5p  % c  % x  -   % m % n
# Use  this  layout  for  LogFactor  5  analysis   

# 应用于文件回滚   
log4j.appender.ROLLING_FILE = org.apache.log4j.RollingFileAppender
log4j.appender.ROLLING_FILE.Threshold = ERROR
log4j.appender.ROLLING_FILE.File = rolling.log
log4j.appender.ROLLING_FILE.Append = true
log4j.appender.ROLLING_FILE.MaxFileSize = 10KB
log4j.appender.ROLLING_FILE.MaxBackupIndex = 1
log4j.appender.ROLLING_FILE.layout = org.apache.log4j.PatternLayout
log4j.appender.ROLLING_FILE.layout.ConversionPattern = [framework]  % d  -   % c  -%- 4r [ % t]  %- 5p  % c  % x  -   % m % n

#应用于socket   
log4j.appender.SOCKET = org.apache.log4j.RollingFileAppender
log4j.appender.SOCKET.RemoteHost = localhost
log4j.appender.SOCKET.Port = 5001
log4j.appender.SOCKET.LocationInfo = true
# Set up  for  Log Facter  5    
log4j.appender.SOCKET.layout = org.apache.log4j.PatternLayout
log4j.appender.SOCET.layout.ConversionPattern = [start] % d  {DATE} [DATE] % n % p[PRIORITY] % n % x[NDC] % n % t[THREAD] % n % c[CATEGORY] % n % m[MESSAGE] % n % n   

# Log Factor  5  Appender   
log4j.appender.LF5_APPENDER = org.apache.log4j.lf5.LF5Appender
log4j.appender.LF5_APPENDER.MaxNumberOfRecords = 2000

# 发送日志给邮件   
log4j.appender.MAIL = org.apache.log4j.net.SMTPAppender
log4j.appender.MAIL.Threshold = FATA
log4j.appender.MAIL.BufferSize = 10
log4j.appender.MAIL.From = web@www.wuset.com
log4j.appender.MAIL.SMTPHost = www.wusetu.com
log4j.appender.MAIL.Subject = Log4J Message
log4j.appender.MAIL.To = web@www.wusetu.com
log4j.appender.MAIL.layout = org.apache.log4j.PatternLayout
log4j.appender.MAIL.layout.ConversionPattern = [framework]  % d  -   % c  -%- 4r [ % t]  %- 5p  % c  % x  -   % m % n


# 用于数据库   
log4j.appender.DATABASE = org.apache.log4j.jdbc.JDBCAppender
log4j.appender.DATABASE.URL = jdbc:mysql: // localhost:3306/test
log4j.appender.DATABASE.driver = com.mysql.jdbc.Driver
log4j.appender.DATABASE.user = root
log4j.appender.DATABASE.password =
log4j.appender.DATABASE.sql = INSERT INTO LOG4J (Message) VALUES ( ' [framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n ' )
log4j.appender.DATABASE.layout = org.apache.log4j.PatternLayout
log4j.appender.DATABASE.layout.ConversionPattern = [framework]  % d  -   % c  -%- 4r [ % t]  %- 5p  % c  % x  -   % m % n
log4j.appender.A1 = org.apache.log4j.DailyRollingFileAppender
log4j.appender.A1.File = SampleMessages.log4j
log4j.appender.A1.DatePattern = yyyyMMdd - HH ' .log4j '
log4j.appender.A1.layout = org.apache.log4j.xml.XMLLayout

#自定义Appender   
log4j.appender.im  =  net.cybercorlin.util.logger.appender.IMAppender
log4j.appender.im.host  =  mail.cybercorlin.net
log4j.appender.im.username  =  username
log4j.appender.im.password  =  password
log4j.appender.im.recipient  =  corlin@cybercorlin.net
log4j.appender.im.layout = org.apache.log4j.PatternLayout
log4j.appender.im.layout.ConversionPattern  = [framework]  % d  -   % c  -%- 4r [ % t]  %- 5p  % c  % x  -   % m % n

# 结束

一般用到得到log4j.properties

log4j.rootLogger=INFO, console, file

log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=[demo] %-5p %d{yyyy-MM-dd HH:mm:ss} - %C.%M(%L)[%t] - %m%n

log4j.appender.file = org.apache.log4j.DailyRollingFileAppender
log4j.appender.file.File = logs/log.log
log4j.appender.file.layout = org.apache.log4j.PatternLayout
log4j.appender.A3.MaxFileSize=1024KB
log4j.appender.A3.MaxBackUpIndex=10
log4j.appender.FILE.layout.ConversionPattern = [framework]  % d  -   % c  -%- 4r [ % t]  %- 5p  % c  % x  -   % m % n

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原文地址：https://www.cnblogs.com/2016-zck/p/13096884.html