首页 > 代码库 > Spring入门,使用Maven进行管理
Spring入门,使用Maven进行管理
一,使用maven创建项目原型
mvn archetype:generate
进入交互模式创建项目原型,根据网速不同,跳出设置选项的时间不定
第一个选项
直接Enter即可,表示使用默认值502,后面的如法炮制,直到设置我们需要的groupId,artifactId,version为止。
我的设置为:
groupId:com.yxl.springdemo
artifactId:springdemo
version:1.0-SNAPSHOT(也就是默认值)
使用tree展示原型目录结构:
二,编辑源代码
首先创建一个bean类,在com/yxl/springdemo目录下新建HelloBean.java。
1 package com.yxl.springdemo; 2 3 public class HelloBean 4 { 5 private String helloword; 6 7 public void setHelloword(String helloword) 8 { 9 this.helloword = helloword;10 }11 public String getHelloword()12 {13 return helloword;14 }15 }
在com/yxl/springdemo目录下新建SpringDemo.java。
1 package com.yxl.springdemo; 2 3 import org.springframework.context.ApplicationContext; 4 import org.springframework.context.support.ClassPathXmlApplicationContext; 5 import org.springframework.context.support.FileSystemXmlApplicationContext; 6 7 public class SpringDemo 8 { 9 public static void main(String[] args)10 {11 //ApplicationContext ctx = new ClassPathXmlApplicationContext("beans-config.xml");12 ApplicationContext ctx = new FileSystemXmlApplicationContext("beans-config.xml");13 HelloBean hello = (HelloBean)ctx.getBean("helloBean");14 System.out.println(hello.getHelloword());15 }16 }
重新编辑pom.xml,解决依赖关系,并生成可执行jar包。
1 <?xml version = "1.0" encoding = "UTF-8"?> 2 <project xmlns="http://maven.apache.org/POM/4.0.0" 3 xmlns:xsi="http://www.w3.org/4.1.2.RELEASE1/XMLSchema-instance" 4 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> 5 <modelVersion>4.0.0</modelVersion> 6 7 <groupId>com.yxl.springdemo</groupId> 8 <artifactId>springdemo</artifactId> 9 <version>1.0-SNAPSHOT</version>10 <packaging>jar</packaging>11 12 <name>springdemo</name>13 <url>http://maven.apache.org</url>14 15 <properties>16 <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>17 </properties>18 19 <dependencies>20 <dependency>21 <groupId>org.springframework</groupId>22 <artifactId>spring-core</artifactId>23 <version>4.1.2.RELEASE</version>24 </dependency>25 <dependency>26 <groupId>org.springframework</groupId>27 <artifactId>spring-context</artifactId>28 <version>4.1.2.RELEASE</version>29 </dependency>30 <dependency>31 <groupId>org.springframework</groupId>32 <artifactId>spring-context-support</artifactId>33 <version>4.1.2.RELEASE</version>34 </dependency>35 <dependency>36 <groupId>org.springframework</groupId>37 <artifactId>spring-beans</artifactId>38 <version>4.1.2.RELEASE</version>39 </dependency>40 <dependency>41 <groupId>org.springframework</groupId>42 <artifactId>spring-aop</artifactId>43 <version>4.1.2.RELEASE</version>44 </dependency>45 <dependency>46 <groupId>junit</groupId>47 <artifactId>junit</artifactId>48 <version>4.7</version>49 <scope>test</scope>50 </dependency>51 </dependencies>52 53 <build>54 <plugins>55 <plugin>56 <groupId>org.apache.maven.plugins</groupId>57 <artifactId>maven-shade-plugin</artifactId>58 <version>2.3</version>59 <executions>60 <execution>61 <phase>package</phase>62 <goals>63 <goal>shade</goal>64 </goals>65 <configuration>66 <transformers>67 <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">68 <manifestEntries>69 <Main-Class>com.yxl.springdemo.SpringDemo</Main-Class>70 <Build-Number>123</Build-Number>71 </manifestEntries>72 </transformer>73 </transformers>74 </configuration>75 </execution>76 </executions>77 </plugin>78 </plugins>79 </build>80 81 </project>
在项目主目录springdemo(不是包目录)下新建beans-config.xml,配置bean属性。
1 <?xml version = "1.0" encoding = "UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xsi:schemaLocation="http://www.springframework.org/schema/beans 5 http://www.springframework.org/schema/beans/spring-beans.xsd"> 6 7 <bean id = "helloBean" 8 class = "com.yxl.springdemo.HelloBean"> 9 <property name = "helloword">10 <value>Hello, World</value>11 </property>12 </bean>13 </beans>
在这里我犯过的一个错误就是xml文件第一行的?与xml之间插入了一个空格,然后运行程序就会抛出异常。
三,编译并运行结果
mvn clean compilemvn clean packagejava -jar target/sprintdemo-1.0-SNAPSHOT.jar
结果:
注意,执行java -jar target/springdemo-1.0-SNAPSHOT.jar时,配置文件必须在当前目录下。比如我是在项目根目录下执行这条语句,所以beans-config.xml也被放置在项目根目录springdemo中,如果在target中执行该包文件,执行时会抛出异常。
Spring入门,使用Maven进行管理
声明:以上内容来自用户投稿及互联网公开渠道收集整理发布,本网站不拥有所有权,未作人工编辑处理,也不承担相关法律责任,若内容有误或涉及侵权可进行投诉: 投诉/举报 工作人员会在5个工作日内联系你,一经查实,本站将立刻删除涉嫌侵权内容。