1. 首先创建1个mavenweb项目 如果没有的话最好是去官网下载一个最新版本的eclipse 里面什么都有 maven/gradle 啥的
2. 选择路径 没啥影响 就是一个路径 默认就行
3. 这里一定要选择 webapp web项目么 怎么能不选择webapp呢
4. 这里就是起名字了
groupId一般分为多个段,第一段为域,第二段为公司名称,这里就 com.demo 吧,举个例子
ArtifactID 就是项目根目录的名称。 我们这是springmvc 就叫springmvc吧
5. 到这里项目就建好了 但是我们还要注意 新建出来的肯定会报错因为 jdk版本不对和tomcat没有添加 右击项目springmvc-->properties
1) 看看这两个有没有勾选
2) java build path 配置好 这里jdk要edit tomcat要 Add Libary-->Server Runtime
6. 这个时候 项目上面应该没有红叉了 神清气爽 下面就是配置了
1) 首先给大家看下完整的项目目录
2) 既然是maven 那么首先肯定是在pom.xml中添加jar包 有点长!!
<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.ding</groupId>
<artifactId>springmvc</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>springmvc Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<spring.version>4.3.9.RELEASE</spring.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- commons jar -->
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.31</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.19</version>
</dependency>
</dependencies>
<build>
<finalName>springmvc</finalName>
</build>
</project>
3) jar加完了 springmvc的第一步肯定是dispatcher 去配置web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">
<display-name>Archetype Created Web Application</display-name>
<!-- 首先是springmvc的 DispatcherServlet -->
<servlet>
<servlet-name>springMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- 这里配置了log4j 打印日志 这里配置了context后一定要记得配置对应的listener 我是在配置mybatis的时候因为没有配置对应的监听listener dao方法无法注入 找了1整整一天 血的教训啊 -->
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>classpath:log4j.properties</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
</listener>
<!-- 这个是为Servlet定制URL 也就是拦截什么样的前台请求 -->
<servlet-mapping>
<servlet-name>springMVC</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 首页 -->
<welcome-file-list>
<welcome-file>/login.jsp</welcome-file>
</welcome-file-list>
</web-app>
4) 下面配置 DispatcherServlet 中的springmvc 和log4jConfigLocation 的log4j.properties 还有就是springmvc用到的数据库参数 dbconfig.properties
一. dbconfig.properties 最简单的其他的访问数啥的配置都没有加 毕竟是联系配置的 不是做项目
db.username=root
db.password=123456
db.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8
db.dirverClass=com.mysql.jdbc.Driver
二. log4j.properties 这就复制就行 我也不是很明白啥意思
# This is the configuring for logging displayed in the Application Server
log4j.rootCategory=DEBUG,stdout,logfile
#stdout configure
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern= %d %p [%c] - <%m>%n
#logfile configure
log4j.appender.logfile=org.apache.log4j.DailyRollingFileAppender
log4j.appender.logfile.File=${webapp.root}/WEB-INF/logs/ssm.log
#log4j.appender.logfile.File=/WEB-INF/logs/ssm.log
#\u65E5\u5FD7\u6587\u4EF6\u7684\u8DEF\u5F84\u548C\u540D\u79F0
#log4j.appender.R.File=./../logs/ssm.log
log4j.appender.logfile.MaxFileSize=10M
log4j.appender.logfile.MaxBackupIndex=100
log4j.appender.logfile.layout=org.apache.log4j.PatternLayout
log4j.appender.logfile.layout.ConversionPattern= %d %p [%c] - <%m>%n
#debug log for spring
log4j.logger.org.springframework=DEBUG
# debug log for ibatis
log4j.logger.java.sql.Connection=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG
三. spring-mvc.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<mvc:annotation-driven/>
<context:component-scan base-package="com.demo" />
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver" >
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property>
<property name="prefix" value="/WEB-INF/views/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
<!-- 下面这段话的意思是我们可以通过${} 来获取classpath:dbconfig.properties中的值 -->
<context:property-placeholder ignore-unresolvable="true" location="classpath:dbconfig.properties"/>
<!-- 这里使用的是阿里巴巴的jar包 包的名字是druid .jar-->
<bean id="mysqlDataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
<property name="driverClassName"> <value>${db.dirverClass}</value> </property>
<property name="url" > <value>${db.url}</value> </property>
<property name="username" > <value>${db.username}</value> </property>
<property name="password" > <value>${db.password}</value> </property>
</bean>
<!-- 这里配置一个jdbcTemplate 用来连接数据库 -->
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<constructor-arg ref="mysqlDataSource" />
</bean>
<!-- dao注入 -->
<bean id="studentDao" class="com.demo.dao.StudentDaoImpl">
<property name="jdbcTemplate" ref="jdbcTemplate"></property>
</bean>
</beans>
7. 这就配置完了 下面是做个测试
1) 首先是页面 login.jsp 通过form做一个提交 这里提交到 controller方法中去--->spring/student/testController
<form action="spring/student/testController" method="post">
<br />用户名: <input type="text" name="name"> <br /> <br />年龄: <input
type="text" name="age"> <br /> <br /> 老师: <input
type="text" name="teacher">
<br /> <input type="submit" value="登录">
</form>
2) StudentController.java 做一个简单的测试 往数据库添加一条数据
@Controller
@RequestMapping("/spring/student")
public class StudentController {
@Autowired
private StudentService ss;
@RequestMapping(value="/testController")
public String toPage(Student s){
System.out.println(s.toString());
s.setId(33);
ss.save(s);
return "success";
}
}
3) StudentService 这个没啥注解需要添加
public interface StudentService {
public void save(Student student);
}
4) StudentServiceImpl
@Service("StudentService")
public class StudentServiceImpl implements StudentService {
@Resource(name="studentDao")
private StudentDao studentDao;
public void save(Student student) {
studentDao.insert(student);
}
}
5)StudentDao
public interface StudentDao {
public void insert(Student student);
}
6) StudentDaoImpl 因为在springmvc中我们给studentDao注入了jdbcTemplate 所以这里可以直接使用 数据库 我就这里就不掩饰了 没事难度
@Repository("studentDao")
public class StudentDaoImpl extends JdbcDaoSupport implements StudentDao {
public void insert(Student student) {
String sql="insert into users(id,firstname,lastname,phone,email) values(?,?,?,?,?)";
getJdbcTemplate().update(sql, new Object[]{66,"yijiang","ding","18330698119","email"});
}
}
这样我们的maven+springmvc就配置完毕了 说一个容易犯的错误
当我们导入的话如果报错 类似于下面 calss类找不到 但是我们ctrl 一点明明有的时候 解决办法:
项目点击右键 点击 Properties 选择Deployment Assembly 再点击右边的Add按钮 选择Java Build Path Entries后点击Next按钮 然后选择你的Maven Dependencies 确定即可
Error configuring application listener of class org.springframework.web.util.Log4jConfigListener java.lang.ClassNotFoundException: org.springframework.web.context.ContextLoaderListener