ssm (ssm 框架集)
ssm(spring+springmvc+mybatis)框架集由spring、springmvc、mybatis三个开源框架整合而成,常作为数据源较简单的web项目的框架。
其中spring是一个轻量级的控制反转(ioc)和面向切面(aop)的容器框架。
springmvc分离了控制器、模型对象、分派器以及处理程序对象的角色,这种分离让它们更容易进行定制。
mybatis是一个支持普通sql查询,存储过程和高级映射的优秀持久层框架。
0、系统环境
1)windows 10 企业版
2)jdk 1.8.0_131
3)eclipse java ee ide for web developers version: neon.3 release (4.6.3)
4)tomcat 8.5
1、maven下载及配置
maven的下载地址:http://maven.apache.org/download.cgi
下载后解压放在d:\java路径下
在环境变量中,新增系统变量名:maven_home,变量值:d:\java\maven
在path中追加:%maven_home%\bin;
在命令行窗口中输入:mvn –v,如果看见下图则说明maven安装配置完毕
2、
2.maven仓库的设置
maven仓库默认位置在系统用户目录下的.m2目录中,类似下图
因为众所周知的原因,直接访问maven公共仓库的速度比较慢,所以推荐使用阿里的maven仓库镜像。编辑setting.xml文件,在mirrors节点下,新增如下内容,这样从仓库中下载jar包速度上会快很多。
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<mirror>
<id>nexus-aliyun</id>
<mirrorof>*</mirrorof>
<name>nexus aliyun</name>
<url>http: //maven.aliyun.com/nexus/content/groups/public</url>
</mirror>
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3、eclipse整合maven
设置eclipse自带maven整合工具,在preferences中找到maven节点,观察user settings项的设置是否正确
点击installations节点,添加maven runtime
4、创建maven项目时设置jdk
问题描述:eclipse创建maven项目时,显示的jdk默认版本为1.5,实际使用的jdk为1.8,如何修改?
解决方案:找到本机maven仓库存放位置,比如:${user.home}/.m2/路径,编辑settings.xml文件,在profiles节点下配置
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<profile>
<id>jdk- 1.8 </id> <activation> <activebydefault> true </activebydefault> <jdk> 1.8 </jdk>
</activation> <properties> <maven.compiler.source> 1.8 </maven.compiler.source> <maven.compiler.target> 1.8 </maven.compiler.target> <maven.compiler.compilerversion> 1.8 </maven.compiler.compilerversion>
</properties>
</profile>
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5、使用maven创建ssm项目
1)选择maven project
2)点击next,选择默认工作空间位置
3)选择web类型
4)填写groupid、artifactid
group id:相当于一个组织
artifact id:相当于这个组织下的一个具体项目
packege:根据group id和artifact id生成一个默认的名称
5)创建出的maven项目如下图
6)问题描述:提示错误:
在eclipse中设置server为tomcat,注意jre设置为安装的jdk的jre
在工程上右键,查看工程属性,找到java build path,添加server runtime为tomcat
点击finish后,项目工程变为下图
7)在项目上右键,查看项目信息
默认的dynamic web module为2.3,使用tomcat 8.5,需要修改为3.1
修改方法:
① maven工程所在目录下org.eclipse.wst.common.project.facet.core.xml
编辑内容,如下所示
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<?xml version= "1.0" encoding= "utf-8" ?>
<faceted-project>
<fixed facet= "wst.jsdt.web" />
<installed facet= "java" version= "1.8" />
<installed facet= "jst.web" version= "2.3" /> <installed facet= "wst.jsdt.web" version= "1.0" />
</faceted-project>
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改为
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<?xml version= "1.0" encoding= "utf-8" ?><faceted-project>
<fixed facet= "wst.jsdt.web" />
<installed facet= "java" version= "1.8" />
<installed facet= "jst.web" version= "3.1" /> <installed facet= "wst.jsdt.web" version= "1.0" />
</faceted-project>
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② maven工程下的web.xml文件修改为
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<?xml version= "1.0" encoding= "utf-8" ?><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_3_1.xsd" version= "3.1" metadata-complete= "true" >
</web-app>
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③ pom.xml文件中修改build节点,添加如下内容
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<plugins>
<plugin> <groupid>org.apache.maven.plugins</groupid> <artifactid>maven-compiler-plugin</artifactid> <configuration>
<source> 1.8 </source>
<target> 1.8 </target>
</configuration>
</plugin>
</plugins>
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④ 修改后,在项目上右键,找到maven属性下的update project,点击之
⑤ 选择该项目进行更新,如果怕不能强制更新,可以勾选force update of snapshots/releases
⑥ 点击ok后更新maven项目,再观察项目属性,module已经变为3.1
6、下载ssm框架所需jar包
修改pom.xml内容为:
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<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>cn.temptation</groupid>
<artifactid>ssm</artifactid>
<packaging>war</packaging>
<version> 0.0 . 1 -snapshot</version>
<name>ssm maven webapp</name>
<url>http: //maven.apache.org</url>
<properties>
<!-- spring版本号 -->
<spring.version> 4.3 . 8 .release</spring.version>
</properties>
<dependencies>
<!-- spring相关包 -->
<dependency>
<groupid>org.springframework</groupid>
<artifactid>spring-core</artifactid>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupid>org.springframework</groupid>
<artifactid>spring-aop</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>${spring.version}</version>
</dependency>
<dependency>
<groupid>org.springframework</groupid>
<artifactid>spring-jdbc</artifactid>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupid>org.springframework</groupid>
<artifactid>spring-tx</artifactid>
<version>${spring.version}</version>
</dependency>
<!-- aop相关包 -->
<dependency>
<groupid>org.aspectj</groupid>
<artifactid>aspectjrt</artifactid>
<version> 1.8 . 0 </version>
</dependency>
<dependency>
<groupid>org.aspectj</groupid>
<artifactid>aspectjweaver</artifactid>
<version> 1.8 . 0 </version>
</dependency>
<!-- mybatis相关包 -->
<dependency>
<groupid>org.mybatis</groupid>
<artifactid>mybatis</artifactid>
<version> 3.3 . 0 </version>
</dependency>
<!-- mysql相关包 -->
<dependency>
<groupid>mysql</groupid>
<artifactid>mysql-connector-java</artifactid>
<version> 5.1 . 26 </version>
</dependency>
<!-- 数据库连接池 -->
<dependency>
<groupid>com.alibaba</groupid>
<artifactid>druid</artifactid>
<version> 1.0 . 20 </version>
</dependency>
<!-- spring集成mybatis -->
<dependency>
<groupid>org.mybatis</groupid>
<artifactid>mybatis-spring</artifactid>
<version> 1.2 . 3 </version>
</dependency>
<!-- jsp标准标签库 -->
<dependency>
<groupid>javax.servlet</groupid>
<artifactid>jstl</artifactid>
<version> 1.2 </version>
</dependency>
<!-- 日志相关包 -->
<dependency>
<groupid>log4j</groupid>
<artifactid>log4j</artifactid>
<version> 1.2 . 17 </version>
</dependency>
<dependency>
<groupid>org.slf4j</groupid>
<artifactid>slf4j-api</artifactid>
<version> 1.7 . 21 </version>
</dependency>
<!-- 单元测试相关包 -->
<dependency>
<groupid>junit</groupid>
<artifactid>junit</artifactid>
<version> 3.8 . 1 </version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalname>ssm</finalname>
<plugins>
<plugin>
<groupid>org.apache.maven.plugins</groupid>
<artifactid>maven-compiler-plugin</artifactid>
<configuration>
<source> 1.8 </source>
<target> 1.8 </target>
</configuration>
</plugin>
</plugins>
</build>
</project>
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保存后,可以看到相关jar包被下载至本地仓库
7、完善项目结构
因为服务端maven项目的标准结构有四个子包:src/main/java、src/main/resources、src/test/java、src/test/resources,这里缺少了src/test/resources,所以手动补上。
在项目中新建source folder
创建src/test/resources目录后,工程如下图所示
右键查看项目属性,点击deployment assembly,移除test和target
移除后如下图
8、创建项目用的配置文件
创建log4j.properties文件,内容如下:
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#use this setting for output mybatis`s sql on the console
log4j.rootlogger=debug, console
#console
log4j.appender.console=org.apache.log4j.consoleappender
log4j.appender.console.layout=org.apache.log4j.patternlayout
log4j.appender.console.layout.conversionpattern=%d [%t] %-5p [%c] - %m%n
log4j.logger.java.sql.resultset=info
log4j.logger.org.apache=info
log4j.logger.java.sql.connection=debug
log4j.logger.java.sql.statement=debug
log4j.logger.java.sql.preparedstatement=debug
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创建mybatis-config.xml文件,内容如下:
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<?xml version= "1.0" encoding= "utf-8" ?>
<!doctype configuration
public "-//mybatis.org//dtd config 3.0//en"
"http://mybatis.org/dtd/mybatis-3-config.dtd" >
<configuration>
<!-- 设置别名 -->
<typealiases>
< package name= "cn.temptation.domain" />
</typealiases>
</configuration>
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创建spring-mvc.xml文件,内容如下:
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<?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:context= "http://www.springframework.org/schema/context"
xmlns:mvc= "http://www.springframework.org/schema/mvc"
xsi:schemalocation="
http: //www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http: //www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http: //www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!-- 启动自动扫描 -->
<context:component-scan base- package = "cn.temptation.*" />
<!-- 注册mvc注解驱动 -->
<mvc:annotation-driven />
<!-- 静态资源可访问的设置方式 -->
<mvc: default -servlet-handler />
<!-- 配置视图解析器,可以显式设置,也可以不设置,不设置会依据springmvc的默认设置 -->
<bean id= "viewresolver"
class = "org.springframework.web.servlet.view.internalresourceviewresolver" >
<property name= "prefix" value= "/" />
<property name= "suffix" value= ".jsp" />
</bean>
</beans>
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创建spring-mybatis.xml文件,内容如下:
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<?xml version= "1.0" encoding= "utf-8" ?>
<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 http://www.springframework.org/schema/beans/spring-beans.xsd">
<!-- 定义数据源bean -->
<!-- druid -->
<bean id= "datasource" class = "com.alibaba.druid.pool.druiddatasource" >
<property name= "url" value= "jdbc:mysql://localhost:3306/test" />
<property name= "username" value= "root" />
<property name= "password" value= "sa" />
</bean>
<!-- 注册sqlsessionfactorybean -->
<bean id= "sqlsessionfactory" class = "org.mybatis.spring.sqlsessionfactorybean" >
<property name= "datasource" ref= "datasource" />
<!-- 自动扫描mappers.xml文件 -->
<property name= "mapperlocations" value= "classpath:cn/temptation/dao/*.xml" />
<property name= "configlocation" value= "classpath:mybatis-config.xml" ></property>
</bean>
<!-- dao接口所在包名,spring会自动查找其下的类 -->
<bean class = "org.mybatis.spring.mapper.mapperscannerconfigurer" >
<property name= "basepackage" value= "cn.temptation.dao" />
<property name= "sqlsessionfactorybeanname" value= "sqlsessionfactory" />
</bean>
</beans>
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创建spring-tx.xml文件,内容如下:
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<?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:context= "http://www.springframework.org/schema/context"
xmlns:aop= "http://www.springframework.org/schema/aop"
xmlns:tx= "http://www.springframework.org/schema/tx"
xsi:schemalocation="
http: //www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http: //www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http: //www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http: //www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- 开启aop注解扫描 -->
<aop:aspectj-autoproxy proxy-target- class = "true" />
<!-- 事务管理器,依赖于数据源 -->
<bean id= "txmanager" class = "org.springframework.jdbc.datasource.datasourcetransactionmanager" >
<property name= "datasource" ref= "datasource" />
</bean>
<!-- 编写通知:对事务进行增强(通知),需要编写对切入点和具体执行事务细节 -->
<tx:advice id= "txadvice" transaction-manager= "txmanager" >
<tx:attributes>
<!--
为切入点方法添加事务详情
name:方法名,*表示任意方法名称
propagation:设置传播行为
isolation:设置隔离级别
read-only:是否只读
-->
<tx:method name= "add*" propagation= "required" isolation= "default" read-only= "false" rollback- for = "exception" />
<tx:method name= "delete*" propagation= "required" isolation= "default" read-only= "false" rollback- for = "exception" />
<tx:method name= "update*" propagation= "required" isolation= "default" read-only= "false" rollback- for = "exception" />
</tx:attributes>
</tx:advice>
<!-- 设置aop,让spring自动对目标生成代理,需要使用aspectj表达式 -->
<aop:config proxy-target- class = "true" >
<!-- 切面:整合切入点和通知 -->
<aop:advisor advice-ref= "txadvice" pointcut= "within(cn.temptation.web..*)" />
</aop:config>
</beans>
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9、编写服务端代码
编写user实体类,代码如下:
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package cn.temptation.domain;
/**
* 用户信息
*/
public class user {
// 成员变量
private integer userid;
private string username;
private string password;
// 构造函数
public user() {
super ();
}
public user(integer userid, string username, string password) {
super ();
this .userid = userid;
this .username = username;
this .password = password;
}
// 成员方法
public integer getuserid() {
return userid;
}
public void setuserid(integer userid) {
this .userid = userid;
}
public string getusername() {
return username;
}
public void setusername(string username) {
this .username = username;
}
public string getpassword() {
return password;
}
public void setpassword(string password) {
this .password = password;
}
}
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编写usercontroller控制器,代码如下:
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package cn.temptation.web;
import javax.annotation.resource;
import javax.servlet.http.httpsession;
import org.springframework.stereotype.controller;
import org.springframework.web.bind.annotation.requestmapping;
import org.springframework.web.bind.annotation.requestmethod;
import org.springframework.web.servlet.modelandview;
import cn.temptation.dao.userdao;
import cn.temptation.domain.user;
/**
* 用户控制器
*/
@controller
@requestmapping (value = "/user" )
public class usercontroller {
@resource
private userdao userdao;
@requestmapping ( "/view" )
public string view() {
return "main/login" ;
}
@requestmapping ( "/indexview" )
public string index() {
return "main/index" ;
}
@requestmapping (value = "/login" , method = requestmethod.post)
public modelandview login(user model, httpsession session) {
user user = userdao.findbyusername(model.getusername());
if (user == null || !user.getpassword().equals(model.getpassword())) {
return new modelandview( "redirect:/login.jsp" );
} else {
session.setattribute( "user" , user);
modelandview mav = new modelandview();
mav.setviewname( "index" );
return mav;
}
}
}
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编写userdao数据访问层接口,代码如下:
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package cn.temptation.dao;
import cn.temptation.domain.user;
public interface userdao {
public abstract user findbyusername(string username);
}
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编写usermapper.xml数据访问层映射文件,代码如下:
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<?xml version= "1.0" encoding= "utf-8" ?>
<!doctype mapper public "-//mybatis.org//dtd mapper 3.0//en"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace= "cn.temptation.dao.userdao" >
<select id= "findbyusername" parametertype= "string" resulttype= "user" >
select * from userinfo where username=#{username}
</select>
</mapper>
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10、编写客户端代码
编写login.jsp登录页,代码如下:
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<%@ page language= "java" contenttype= "text/html; charset=utf-8" pageencoding= "utf-8" %>
<!doctype html public "-//w3c//dtd html 4.01 transitional//en" "http://www.w3.org/tr/html4/loose.dtd" >
<html>
<head>
<meta http-equiv= "content-type" content= "text/html; charset=utf-8" >
<title>登录</title>
</head>
<body>
<form action= "user/login" method= "post" >
<label>账号:</label>
<input type= "text" id= "txtusername" name= "username" placeholder= "请输入账号" /><br/>
<label>密码:</label>
<input type= "password" id= "txtpassword" name= "password" placeholder= "请输入密码" /><br/>
<input type= "submit" value= "提交" />
<input type= "reset" value= "重置" />
</form>
</body>
</html>
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编写index.jsp主页,代码如下:
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<%@ page language= "java" contenttype= "text/html; charset=utf-8" pageencoding= "utf-8" %>
<!doctype html public "-//w3c//dtd html 4.01 transitional//en" "http://www.w3.org/tr/html4/loose.dtd" >
<html>
<head>
<meta http-equiv= "content-type" content= "text/html; charset=utf-8" >
<title>主页</title>
</head>
<body>
<h3>欢迎,${user.username }</h3>
</body>
</html>
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11、使用maven构建项目
在项目上右键,找到maven属性的update project,也可以alt+f5操作
修改项目编译路径为jre系统类库,否则后续操作出错
项目上右键,找到run as属性,找到maven install
点击执行,结果如下说明构建成功
项目运行还是使用web工程的部署运行方式
运行项目,观察是否报错
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总结
以上所述是小编给大家介绍的使用eclipse + maven一步步搭建ssm框架教程详解,希望对大家有所帮助如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持!
原文链接:https://www.cnblogs.com/knightsu/p/knightsu.html