SSM项目整合与发布

¶SSM项目整合与发布

¶创建SSM项目

1. 选择Maven项目类型，选择webapp(选中的那一项)
   
2. 填入自己项目组id,一般为com.xxx.xxx;填入项目id，也就是项目名
   
3. 项目创建成功之后，创建java源代码目录,在src中的main目录下创建
   
4. 创建resources目录(存放配置文件)，也是在src中的目录下创建
5. 配置tomcat,点击+,选择tomcat server->local,创建一个本地tomcat，也可以创建一个远程tomcat(选择remote)
   open browser选择浏览器
   
6. 进入deployment中，点击右边的+,选择第一个选项，得到途中选中的一项
   

¶创建配置文件

• 创建web配置文件(web.xml)

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
  <display-name>Archetype Created Web Application</display-name>

  <!--配置Spring-->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:bean-*.xml</param-value>
  </context-param>

  <!--监听器-->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

  <!--配置Spring mvc-->
  <servlet>
    <servlet-name>DispatcherServlet</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>

  <servlet-mapping>
    <servlet-name>DispatcherServlet</servlet-name>
    <url-pattern>*.action</url-pattern> <!--Spring mvc默认后缀为action-->
  </servlet-mapping>
</web-app>

• 创建数据库信息配置文件(db.properties)

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://127.0.0.1:3306/ssmdb?characterEncoding=utf-8
jdbc.username=root
jdbc.password=root

• 创建springmvc配置文件(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:p="http://www.springframework.org/schema/p"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-4.0.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
        http://www.springframework.org/schema/tx
        http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!--扫描控制器-->
    <context:component-scan base-package="com.deployee.controller"></context:component-scan>


    <!--配置一个bean-->
    <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
        <property name="messageConverters">
            <ref bean="httpMessageConverter"/><!--为其他注解配置id为httpMessageConverter的消息转换器-->
        </property>
    </bean>

    <!--配置一个请求的适配器-->
    <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
        <property name="messageConverters">
            <ref bean="httpMessageConverter"/> <!--为requestMapper注解配置id为httpMessageConverter的消息转换器-->
        </property>
    </bean>

    <!--配置消息转换器-->
    <!--将消息转换为json格式-->
    <bean id="httpMessageConverter" class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">
        <property name="supportedMediaTypes">
            <list>
                <bean class="org.springframework.http.MediaType">
                    <constructor-arg index="0" value="application"/><!--作用于application(整个项目)-->
                    <constructor-arg index="1" value="json"/><!--消息格式为json-->
                    <constructor-arg index="2" value="UTF-8"/><!--消息编码为utf-8-->
                </bean>
            </list>
        </property>
    </bean>

    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>

    <!--注册注解驱动-->
    <mvc:annotation-driven>

    </mvc:annotation-driven>
    <mvc:default-servlet-handler></mvc:default-servlet-handler>
</beans>

• 创建mybatis配置文件(bean-mybatis.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:p="http://www.springframework.org/schema/p"
       xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:aop="http://www.springframework.org/schema/aop"
       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/tx
        http://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop.xsd">



    <!---加载数据属性文件-->
    <!--通过实体PropertyPlaceholderConfigurer将属性文件中的值提取出来-->
    <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <!--如果资源没有被找到，不报错-->
        <property name="ignoreResourceNotFound" value="true"/>
        <!--从路径中加载配置文件集合，配置文件就是集合的值-->
        <property name="locations">
            <list>
                <value>classpath:db.properties</value>
            </list>
        </property>
    </bean>

    <!--配置数据源-->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
        <property name="url" value="jdbc:mysql://ip address:3306/ssmdb?characterEncoding=utf-8"/>
        <property name="username" value="rack"/>
        <property name="password" value="123456"/>
    </bean>

    <!--配置mybatis与spring整合-->
    <bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="mapperLocations" value="classpath:mapper/*.xml"/>
        <property name="typeAliasesPackage" value="com.deployee.pojo"/>
    </bean>

    <!--代理对象-->
    <bean id="scannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!--将session对象工厂引入-->
        <property name="sqlSessionFactory" ref="sessionFactory"/>
        <!--接口位置-->
        <property name="basePackage" value="com.deployee.mapper"/>
    </bean>

    <!--扫描所有包-->
    <context:component-scan base-package="com.deployee.*"></context:component-scan>
    <!--自动代理-->
    <aop:aspectj-autoproxy></aop:aspectj-autoproxy>
</beans>

¶创建各个java文件

¶创建com.deployee.pojo包

• 创建User文件

package com.deployee.pojo;

import java.io.Serializable;

public class User implements Serializable {
    private Integer id ;
    private String username ;
    private String password ;

    public User() {
    }

    public User(String username, String password) {
        this.username = username;
        this.password = password;
    }

    public User(Integer id, String username, String password) {
        this.id = id;
        this.username = username;
        this.password = password;
    }

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    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;
    }

    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", username='" + username + '\'' +
                ", password='" + password + '\'' +
                '}';
    }
}

¶创建com.deployee.mapper包

• 创建UserMapper文件

package com.deployee.mapper;

import com.deployee.pojo.User;

import java.util.List;

public interface UserMapper {
    List<User> list();
}

¶创建com.deployee.service包

• 创建UserService文件

package com.deployee.service;

import com.deployee.pojo.User;

import java.util.List;

public interface UserService {
    List<User> list();
}

¶创建com.deployee.service.impl包

• 创建UserServiceImpl文件

package com.deployee.service.impl;

import com.deployee.mapper.UserMapper;
import com.deployee.pojo.User;
import com.deployee.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import java.util.List;

@Service
public class UserServiceImpl implements UserService {

    @Autowired
    private UserMapper userMapper = null ;

    /**
     * 这个注解是用来实现在对象加入IOC容器的时候实现数据的初始化
     */
    @PostConstruct
    public void init(){
        System.out.println("初始化数据");
    }

    @Override
    public List<User> list() {
        return userMapper.list();
    }

    /**
     * 这个注解是对象在IOC容器销毁时执行
     */
    @PreDestroy
    public void destroy(){
        System.out.println("销毁数据");
    }
}

¶创建com.deployee.controller包

• 创建UserController文件

package com.deployee.controller;


import com.deployee.pojo.User;
import com.deployee.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

/**
 *  @RestController : 等同于@Controller和@ResponseBody这两个的功能
 */
//@RestController
@Controller
@RequestMapping(value = "user")
public class UserController {
    @Autowired
    private UserService us = null ;

    /**
     * 请求数据
     * @return
     */
    @GetMapping("list")
//    @RequestMapping(value = "/list")
    @ResponseBody
    public List<User> list(){
        List<User> list = us.list();
        System.out.println("返回的数据:"+list);
        return list ; //返回的是json格式的数据，因为有@ResponseBody这个注解
    }
}

¶本地测试

¶创建jsp文件

• 创建index.jsp文件

<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>
<html>
<body>
<h2>Hello World!</h2>
<jsp:forward page="${pageContext.request.contextPath}/user/list.action"></jsp:forward>
</body>
</html>

• 进入浏览器测试(输入localhost:8080)

[{"id":1,"password":"123456","username":"张三"},{"id":2,"password":"12345678","username":"李四"},{"id":3,"password":"1876543","username":"王五"}]

• 测试成功

¶SSM项目部署到远端服务器

¶配置pom文件

• 增加一段代码,使得部署到远端服务器后能够像在本地idea里访问一样正常的访问

<resources>
  <resource>
    <directory>src/main/java</directory>
    <includes>
      <include>**/*.xml</include>
    </includes>
  </resource>
  <resource>
    <directory>src/main/resouces/</directory>
  </resource>
</resources>

¶编译项目

• 使用maven管理项
  编译安装target命令
  
• 打开idea终端，使用maven命令

mvn clean  #清理生成的编译项目
mvn package #生成target项目
mvn install #编译生成target项目，比package命令更完善

• 最终得到项目打包war
  

¶复制war包到远端

• 复制deployee.war路径

scp scp /home/share/workspace/deployee/target/deployee.war root@ip address:/usr/local/tomcat/apache-tomcat-8.0.9/webapps
cd /usr/local/tomcat/apache-tomcat-8.0.9/bin
./shutdown.sh
./startup.sh

¶远端测试

• 进入浏览器测试(输入ip address:8080)

[{"id":1,"password":"123456","username":"张三"},{"id":2,"password":"12345678","username":"李四"},{"id":3,"password":"1876543","username":"王五"}]

• 测试成功