Maven项目中引入jar包，和平时引入Jar包有所不同，平时就是找到并下载jar包，用IDE导入就可以！
而maven项目引入了项目依赖Dependence的概念，项目中引入此jar包，代表此项目依赖此包，或者可以说这个包就是我项目的Dependence。
maven项目的Pom.xml文件，就是作为引入jar包的工具！
问一下百度叔叔，输入：Spring MVC maven项目需要哪些JAR包以及版本等等，就可以将你的包引入了！PS：通过<dependency>标签，输入Version，
artifactId、group_id等等,就是你的JAR包的名称、版本信息而已！
1 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 2 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> 3 <modelVersion>4.0.0</modelVersion> 4 <groupId>src.java</groupId><!-- 指定组名 --> 5 <artifactId>USER</artifactId><!--指定工作组名 --> 6 <packaging>war</packaging><!-- The current core packaging values are: pom, jar, maven-plugin, ejb, war, ear, rar, par --> 7 <version>0.0.1-SNAPSHOT</version><!-- 指定版本 --> 8 <name>USER Maven Webapp</name><!-- 可选 name url --> 9 <url>http://maven.apache.org</url> 10 <dependencies> 11 <dependency> 12 <groupId>junit</groupId> 13 <artifactId>junit</artifactId> 14 <version>3.8.1</version> 15 <scope>test</scope> 16 </dependency> 17 <!-- servlet --> 18 <dependency> 19 <groupId>javax.servlet</groupId> 20 <artifactId>javax.servlet-api</artifactId> 21 <version>3.1.0</version> 22 <scope>provided</scope> 23 </dependency> 24 25 <dependency> 26 <groupId>javax.servlet</groupId> 27 <artifactId>jstl</artifactId> 28 <version>1.2</version> 29 </dependency> 30 31 <dependency> 32 <groupId>javax.servlet</groupId> 33 <artifactId>jsp-api</artifactId> 34 <version>2.0</version> 35 <scope>provided</scope> 36 </dependency> 37 38 <!-- Spring --> 39 <dependency> 40 <groupId>org.springframework</groupId> 41 <artifactId>spring-jdbc</artifactId> 42 <version>4.0.3.RELEASE</version> 43 </dependency> 44 45 <dependency> 46 <groupId>org.springframework</groupId> 47 <artifactId>spring-context-support</artifactId> 48 <version>4.0.3.RELEASE</version> 49 </dependency> 50 51 <dependency> 52 <groupId>org.springframework</groupId> 53 <artifactId>spring-web</artifactId> 54 <version>4.0.3.RELEASE</version> 55 </dependency> 56 57 <dependency> 58 <groupId>org.springframework</groupId> 59 <artifactId>spring-webmvc</artifactId> 60 <version>4.0.3.RELEASE</version> 61 </dependency> 62 63 <!-- mybatis --> 64 <dependency> 65 <groupId>org.mybatis</groupId> 66 <artifactId>mybatis</artifactId> 67 <version>3.2.7</version> 68 </dependency> 69 70 <dependency> 71 <groupId>org.mybatis</groupId> 72 <artifactId>mybatis-spring</artifactId> 73 <version>1.2.2</version> 74 </dependency> 75 <!--jackson --> 76 <dependency> 77 <groupId>com.fasterxml.jackson.core</groupId> 78 <artifactId>jackson-databind</artifactId> 79 <version>2.2.3</version> 80 </dependency> 81 82 <dependency> 83 <groupId>org.codehaus.jackson</groupId> 84 <artifactId>jackson-core-asl</artifactId> 85 <version>1.9.13</version> 86 </dependency> 87 <!-- DB2 --> 88 <dependency> 89 <groupId>db2jcc</groupId> 90 <artifactId>db2jcc</artifactId> 91 <version>9.0</version> 92 </dependency> 93 94 <dependency> 95 <groupId>db2jcc_license_cu</groupId> 96 <artifactId>db2jcc_license_cu</artifactId> 97 <version>9.0</version> 98 </dependency> 99 100 <dependency> 101 <groupId>commons-dbcp</groupId> 102 <artifactId>commons-dbcp</artifactId> 103 <version>1.4</version> 104 </dependency> 105 106 <dependency> 107 <groupId>log4j</groupId> 108 <artifactId>log4j</artifactId> 109 <version>1.2.17</version> 110 <exclusions> 111 <exclusion> 112 <groupId>javax.jms</groupId> 113 <artifactId>jms</artifactId> 114 </exclusion> 115 <exclusion> 116 <groupId>com.sun.jdmk</groupId> 117 <artifactId>jmxtools</artifactId> 118 </exclusion> 119 <exclusion> 120 <groupId>com.sun.jmx</groupId> 121 <artifactId>jmxri</artifactId> 122 </exclusion> 123 </exclusions> 124 </dependency> 125 126 <dependency> 127 <groupId>commons-codec</groupId> 128 <artifactId>commons-codec</artifactId> 129 <version>1.9</version> 130 </dependency> 131 132 <dependency> 133 <groupId>com.google.code.gson</groupId> 134 <artifactId>gson</artifactId> 135 <version>2.2.4</version> 136 </dependency> 137 138 <!--jackson --> 139 <dependency> 140 <groupId>com.fasterxml.jackson.core</groupId> 141 <artifactId>jackson-databind</artifactId> 142 <version>2.2.3</version> 143 </dependency> 144 145 <dependency> 146 <groupId>org.codehaus.jackson</groupId> 147 <artifactId>jackson-core-asl</artifactId> 148 <version>1.9.13</version> 149 </dependency> 150 151 <!-- <dependency> 152 <groupId>com.danga.MenCached</groupId> 153 <artifactId>java_memcached-release</artifactId> 154 <version>2.0.1</version> 155 </dependency> 156 --> 157 158 <!-- <dependency> 159 <groupId>com.google.code.simple-spring-memcached</groupId> 160 <artifactId>simple-spring-memcached-parent</artifactId> 161 <version>3.1.0</version> 162 <type>pom</type> 163 </dependency> 164 165 --> 166 <dependency> 167 <groupId>com.dango</groupId> 168 <artifactId>memcached</artifactId> 169 <version>2.0.1</version> 170 </dependency> 171 172 173 </dependencies> 174 175 <build> 176 <finalName>USER</finalName> 177 </build> 178 </project>
然后运行你的maven，Maven会自动下载所需的jar及相关的pom信息，Maven会帮你下载，并放到适当的位置，方便吧！呵呵~~
Maven的repository，说白了就是dependency的仓库，它按照一定的规则将dependency存放起来，以作缓存，如果本机的 repository找不到某个dependency，它就会自动去找到网上其它相关联的repository，找到的话将其下载至本地，那么下次它就不 再去其它地方下载了，直接从本地获取。
本地的repository在哪可找到？
默认repository地址：当前用户的私人目录 + .m2 如 C:\Users\c1307888\.m2
如果你之前设置了Maven目录下的conf/setting.xml的local repository属性，则不再是默认的repository地址，而使用你指定的地址。
找到下面这段，将它复制一份，放到注释外面，改成你自己的repository路径即可
<localRepository>c:\mvn repository\</localRepository>
...待续
时间： 2024-11-05 17:27:15