JavaWeb常用maven依赖及配置文件

一、JavaWeb常用maven依赖

1、junit

<dependency>
   <groupId>junitgroupId>
   <artifactId>junitartifactId>
   <version>4.12version>
 dependency>

2、mysql驱动

<dependency>
  <groupId>mysqlgroupId>
  <artifactId>mysql-connector-javaartifactId>
  <version>5.1.47version>
dependency>

3、servlet

<dependency>
  <groupId>javax.servletgroupId>
  <artifactId>javax.servlet-apiartifactId>
  <version>4.0.1version>
dependency>

4、jsp

<dependency>
  <groupId>javax.servlet.jspgroupId>
  <artifactId>javax.servlet.jsp-apiartifactId>
  <version>2.3.3version>
dependency>

5、jstl

<dependency>
  <groupId>javax.servlet.jsp.jstlgroupId>
  <artifactId>jstl-apiartifactId>
  <version>1.2version>
dependency>

6、taglibs

<dependency>
  <groupId>taglibsgroupId>
  <artifactId>standardartifactId>
  <version>1.1.2version>
dependency>

7、阿里巴巴的 fastjson

<dependency>
  <groupId>com.alibabagroupId>
  <artifactId>fastjsonartifactId>
  <version>1.2.61version>
dependency>

8、mybatis

<dependency>
  <groupId>org.mybatisgroupId>
  <artifactId>mybatisartifactId>
  <version>3.5.2version>
dependency>

9、log4j

<dependency>
    <groupId>log4jgroupId>
    <artifactId>log4jartifactId>
    <version>1.2.17version>
dependency>

10、lombok

<dependency>
    <groupId>org.projectlombokgroupId>
    <artifactId>lombokartifactId>
    <version>1.18.10version>
dependency>

11、spring

<dependency>
    <groupId>org.springframeworkgroupId>
    <artifactId>spring-webmvcartifactId>
    <version>5.2.0.RELEASEversion>
dependency>

二、常用配置文件

1、web.xml

<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"
         metadata-complete="true">

web-app>

2、maven资源导出失败的问题

<build>
    <resources>
        <resource>
            <directory>src/main/resourcesdirectory>
            <includes>
                <include>**/*.propertiesinclude>
                <include>**/*.xmlinclude>
            includes>
            <filtering>truefiltering>
        resource>
        <resource>
            <directory>src/main/javadirectory>
            <includes>
                <include>**/*.propertiesinclude>
                <include>**/*.xmlinclude>
            includes>
            <filtering>truefiltering>
        resource>
    resources>
build>

3、MyBatis相关配置

3.1、mybatis-config.xml

<configuration>
    
    <properties resource="db.properties"/>
    
    <settings>
        <setting name="logImpl" value="STDOUT_LOGGING"/>
    settings>

    <typeAliases>
        <package name="com.study.pojo"/>
    typeAliases>

    <environments default="development">
        <environment id="development">
            <transactionManager type="JDBC"/>
            <dataSource type="POOLED">
                <property name="driver" value="${driver}"/>
                <property name="url" value="${url}"/>
                <property name="username" value="${username}"/>
                <property name="password" value="${password}"/>
            dataSource>
        environment>
    environments>
    
    <mappers>
        <mapper class="com.study.dao.XxxMapper"/>
    mappers>
configuration>

3.2、db.properties(数据库配置文件)

driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/mybatis?useSSL=true&useUnicode=true&characterEncoding=UTF-8
username=root 
password=123456

3.3、XxxMapper.xml

<mapper namespace="com.study.dao.XxxMapper">

mapper>

3.4、log4j.properties

#将等级为DEBUG的日志信息输出到console和file这两个目的地，console和file的定义在下面的代码
log4j.rootLogger=DEBUG,console,file

#控制台输出的相关设置
log4j.appender.console = org.apache.log4j.ConsoleAppender
log4j.appender.console.Target = System.out
log4j.appender.console.Threshold=DEBUG
log4j.appender.console.layout = org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=[%c]-%m%n

#文件输出的相关设置
log4j.appender.file = org.apache.log4j.RollingFileAppender
log4j.appender.file.File=./log/study.log
log4j.appender.file.MaxFileSize=10mb
log4j.appender.file.Threshold=DEBUG
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=[%p][%d{yy-MM-dd}][%c]%m%n

#日志输出级别
log4j.logger.org.mybatis=DEBUG
log4j.logger.java.sql=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.ResultSet=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG

3.5、MyBatisUtils.java

import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import java.io.IOException;
import java.io.InputStream;

public class MyBatisUtils {

    private static SqlSessionFactory sqlSessionFactory;

    static {
        try {
            String resources="mybatis-config.xml";
            InputStream inputStream = Resources.getResourceAsStream(resources);
            sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static SqlSession getSqlSession(){
        //true：自动提交事务,默认为false
        return sqlSessionFactory.openSession(true);
    }
}

4、applicationContext.xml

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        https://www.springframework.org/schema/beans/spring-beans.xsd">

   
beans>