maven+springmvc的配置

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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>

<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.2</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>

<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>

<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>

<servlet-mapping>
<servlet-name>springMVC</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>

<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="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>

<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<constructor-arg ref="mysqlDataSource" />
</bean>

<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

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.Log4jConfigListenerjava.lang.ClassNotFoundException: org.springframework.web.context.ContextLoaderListener