zoukankan      html  css  js  c++  java
  • 手把手教你搭建SSH框架(Eclipse版)

    手把手教你搭建SSH框架(Eclipse版)

     

    1、前期准备

    • 安装配置JDK1.8
    • 安装配置Tomcat9.0
    • 安装配置MySql5.7
    • 开发工具Eclipse

    2、新建动态Web项目

    在开发工具中:

    File-->New-->Project-->Dynamic Web Project

    输入项目名称(本教程项目名:sshDemo),最后点击Finish即可。

    3、补充、完善项目目录

    为使得项目符合MVC开发规范,我们需要在src下新建controller、service、entity几个包和resources目录。完成后目录结构如下图:

    4、导入所需Jar包

    本期教程用最原始的方法手动导入项目所需Jar包。手动导入会存在Jar包版本冲突等很多问题,建议直接下载使用。在公众号【C you again】后台回复“Jar”自行下载,若不能正常下载,请在后台私信。

    将下载好的Jar包复制到WebContent-->WEB-INF-->lib文件夹下,然后选中所有Jar包-->鼠标右击-->Build Path-->Add to Build Path。

    5、添加相关配置文件

    完成以上基本步骤后,接下来就是SSH整合的关键步骤了。

    首先在项目的WebContent-->WEB-INF下的web.xml文件中加入以下配置,如果没有web.xml文件就需要自己新建一个。

    <?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"
        xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
        id="WebApp_ID" version="2.5">
        
        <welcome-file-list>
            <welcome-file>test.jsp</welcome-file>
        </welcome-file-list>
        <!-- 加载spring容器 -->
        <context-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath*:application.xml</param-value>
        </context-param>
        <listener>
            <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
        </listener>
    
        <!-- 解决post乱码 -->
        <filter>
            <filter-name>CharacterEncodingFilter</filter-name>
            <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
            <init-param>
                <param-name>encoding</param-name>
                <param-value>utf-8</param-value>
            </init-param>
    
        </filter>
        <filter-mapping>
            <filter-name>CharacterEncodingFilter</filter-name>
            <url-pattern>/*</url-pattern>
        </filter-mapping>
    
    
        <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*:springmvc.xml</param-value>
            </init-param>
            <load-on-startup>1</load-on-startup>
        </servlet>
        <servlet-mapping>
            <servlet-name>springMvc</servlet-name>
            <url-pattern>/</url-pattern>
        </servlet-mapping>
    
    </web-app>
    

    完成web.xml的配置后,在前面建好的resources文件夹下新建application.xml,具体解释看文件内部。

    <?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:tx="http://www.springframework.org/schema/tx"
           xsi:schemaLocation="http://www.springframework.org/schema/beans
                            http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
                            http://www.springframework.org/schema/context
                            http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
        <!-- 自动扫描 -->
        <context:component-scan base-package="com.cya"/>
    
        <!-- 引入配置文件 -->
        <bean id="propertyConfigurer"
              class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">    
            <property name="locations">
                    <value>classpath*:dbconfig.properties</value>
            </property>
        </bean>
    
        <!-- 配置数据库连接池 -->
        <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
            destroy-method="close">
            <property name="url" value="${jdbc.url}" />
            <property name="username" value="${jdbc.username}" />
            <property name="password" value="${jdbc.password}" />
            <property name="driverClassName" value="${jdbc.driver}" />
            <property name="maxActive" value="10" />
            <property name="minIdle" value="5" />
        </bean>
        
        
        <!-- spring与hibernate整合 -->
        <bean id="sqlSessionFactory"
            class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
            <property name="dataSource" ref="dataSource"></property>
            <!-- hibernate配置信息 -->
            <property name="hibernateProperties">
                <props>
                <prop key="hibernate.dialect">${hibernate.dialect}</prop>
                <prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
                <prop key="hibernate.format_sql">${hibernate.format_sql}</prop>
                <prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>
                </props>
            </property>
    
            <property name="configLocations">
                <list>
                    <value> classpath*:hibernate.cfg.xml</value>
                </list>
            </property>
        </bean>
    
        <!-- 配置hibernateTemplate(可将Hibernate 的持久层访问模板化) -->
        <bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">
            <property name="sessionFactory" ref="sqlSessionFactory"></property>
        </bean>
    
        <!-- 事务管理 -->
        <bean id="transactionManager"
              class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            <property name="dataSource" ref="dataSource"/>
        </bean>
    
        <!--支持事务注解的(@Transactional)-->
        <tx:annotation-driven transaction-manager="transactionManager"/>
    
    </beans>
    

    接着在resources文件夹下新建springmvc.xml,代码如下:

    <?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">
    
        <!-- 自动装配 -->
        <context:component-scan base-package="com.cya.controller" />
        <!-- 启用spring mvc 注解 -->
        <mvc:annotation-driven />
    
        <!--视图解析器-->
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <!--前缀-->
            <property name="prefix" value="/WEB-INF/"/>
            <!--后缀-->
            <property name="suffix" value=".jsp"></property>
        </bean>
        
        <!-- 文件上传 -->
        <bean id="multipartResolver"
              class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
            <!-- 默认编码 -->
            <property name="defaultEncoding" value="utf-8"/>
            <!-- 文件大小最大值 -->
            <property name="maxUploadSize" value="10485760000"/>
            <!-- 内存中的最大值 -->
            <property name="maxInMemorySize" value="40960"/>
        </bean>
    
    </beans>
    

    同上面的步骤,继续在resources文件夹下新建hibernate.cfg.xml、dbconfig.properties、log4j.properties三个文件。

    hibernate.cfg.xml文件:

    <?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE hibernate-configuration PUBLIC 
    "-//Hibernate/Hibernate Configuration DTD 3.0//EN" 
    "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
    <hibernate-configuration>
        <session-factory>
        <!-- 设置映射的xml文件  -->
            
        </session-factory>
    </hibernate-configuration>
    

    dbconfig.properties文件:

    #database connection config
    jdbc.driver = com.mysql.jdbc.Driver
    jdbc.url = jdbc:mysql://localhost:3306/test?characterEncoding=utf-8&useSSL=false
    jdbc.username = root
    jdbc.password = root
    
    #hibernate config
    hibernate.dialect = org.hibernate.dialect.MySQLDialect
    hibernate.show_sql = true
    hibernate.format_sql = true
    hibernate.hbm2ddl.auto = update
    

    log4j.properties文件:

    # Set root logger level to error
    log4j.rootLogger=INFO, Console, File
    
    ###### Console appender definition #######
    
    # All outputs currently set to be a ConsoleAppender.
    log4j.appender.Console=org.apache.log4j.ConsoleAppender
    log4j.appender.Console.layout=org.apache.log4j.PatternLayout
    log4j.appender.Console.layout.ConversionPattern=%d{ABSOLUTE} %-5p [%c{3}] %m%n
    #log4j.appender.Console.layout.ConversionPattern=%d{ABSOLUTE} %-5p [%c] %m%n
    
    ###### File appender definition #######
    log4j.appender.File=org.apache.log4j.DailyRollingFileAppender
    log4j.appender.File.File=spring.log
    log4j.appender.File.Append=false
    log4j.appender.File.layout=org.apache.log4j.PatternLayout
    log4j.appender.File.layout.ConversionPattern=%d{ABSOLUTE} %-5p [%c] %m%n
    

    至此,所有的整合步骤已经完成了,最后的目录结构如下所示,接下来就是设计测试用例了。

    6、测试项目能否正常运行

    完成上述步骤后,接下来就测试下整合是否成功吧!

    在src-->com.cya.entity下创建Person.java实体类

    package com.cya.entity;
    
    public class Person {
    	private int id;
    	private String name;
    	private int age;
    	public int getId() {
    		return id;
    	}
    	public void setId(int id) {
    		this.id = id;
    	}
    	public String getName() {
    		return name;
    	}
    	public void setName(String name) {
    		this.name = name;
    	}
    	public int getAge() {
    		return age;
    	}
    	public void setAge(int age) {
    		this.age = age;
    	}
    	
    }
    

    在resources下新建mapping目录,用来保存所有的数据库映射文件。mapping目录下创建映射文件:Person.hbm.xml,具体配置如下:

    <?xml version="1.0" encoding="utf-8"?> 
    <!DOCTYPE hibernate-mapping PUBLIC 
    "-//Hibernate/Hibernate Mapping DTD 3.0//EN" 
    "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
    <hibernate-mapping>
        <class name="com.cya.entity.Person" table="t_person">
            <id name="id" type="java.lang.Integer" column="p_id" >
                <generator class="increment"></generator>
            </id>
            <property name="name" type="java.lang.String" column="p_name"></property>
            <property name="age" type="java.lang.Integer" column="p_age"></property>
        </class>
    </hibernate-mapping>
    

    修改hibernate.cfg.xml,添加配置:

    <?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE hibernate-configuration PUBLIC 
    "-//Hibernate/Hibernate Configuration DTD 3.0//EN" 
    "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
    <hibernate-configuration>
        <session-factory>
        <!-- 设置映射的xml文件  -->
            <mapping resource="mapping/Person.hbm.xml"/>
        </session-factory>
    </hibernate-configuration>
    

    修改完成后启动web项目,待项目启动成功以后刷新test数据库,我们发现已经创建好了名为t_person的数据表。

    在WebContent文件夹下新建test.jsp。

    <%@ page language="java" contentType="text/html; charset=utf-8"
    	pageEncoding="utf-8"%>
    <!DOCTYPE html>
    <html>
    <head>
      <meta charset="utf-8">
      <title>测试SSH整合</title>
    </head>
    <body>
    	<h3>
    		<a href="addPerson">添加并查看Person信息</a>
    	</h3>
    </body>
    </html>
    

    在src-->com.cya.service下创建IPersonService.java接口。

    package com.cya.service;
    
    import java.util.List;
    
    import com.cya.entity.Person;
    
    public interface IPersonService {
    	
    	public boolean addPerson(Person person);
    	
    	public List<Person> getPerson(String sql);
    	
    }
    
    

    在src下新建com.cya.service.impl包,并创建PersonServiceImpl.java类实现IPersonService.java接口中的getPerson()和addPerson()两个方法。

    package com.cya.service.impl;
    
    import java.util.List;
    
    import javax.annotation.Resource;
    
    import org.springframework.orm.hibernate3.HibernateTemplate;
    import org.springframework.stereotype.Service;
    
    import com.cya.entity.Person;
    import com.cya.service.IPersonService;
    
    
    @Service
    public class PersonServiceImpl implements IPersonService{
    
    	@Resource(name="hibernateTemplate")
    	private HibernateTemplate hibernateTemplate;
    	
    	@Override
    	public boolean addPerson(Person person) {
    		// TODO Auto-generated method stub
    		boolean result=true;
    		try {
    			hibernateTemplate.save(person);
    		} catch (Exception e) {
    			// TODO: handle exception
    			result=false;
    		}
    		return result;
    		
    	}
    
    	@Override
    	public List<Person> getPerson(String sql) {
    		// TODO Auto-generated method stub
    		return (List<Person>) hibernateTemplate.find(sql);
    	}
    
    }
    
    

    在src-->com.cya.controller包下新建class,这里取名为Test.java,去调用PersonServiceImpl.java中的方法。

    package com.cya.controller;
    
    import java.util.List;
    
    import javax.annotation.Resource;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.ResponseBody;
    
    import com.cya.entity.Person;
    import com.cya.service.IPersonService;
    
    @Controller
    @ResponseBody
    public class Test {
    	
    	@Resource
    	private IPersonService personServiceImpl;
    	
    	@RequestMapping("addPerson")
    	public List<Person> getPerson() {
    	  Person person=new Person();
    	  person.setAge(15);
    	  person.setName("test");
    	  boolean status=personServiceImpl.addPerson(person);
    	  if(status)return personServiceImpl.getPerson("from com.cya.entity.Person");
    	  else return null;
    	}
    }
    

    最后检查代码,启动服务,在浏览器地址栏输入:http://localhost:8080/sshDemo/test.jsp查看效果。

    7、下载相关

    下载项目所需Jar包请在公众号【C you again】回复“Jar”。

    下载完整项目源码请在公众号【C you again】回复“ssh”。

    本期分享就到这里,因本人技术有限,文章难免会出现一些错误,欢迎指正。创作不易,大家多多转发点赞,感谢。

    精彩推荐

    《手把手教你搭建SSM框架(Eclipse版)》

  • 相关阅读:
    WEB API&API
    event flow
    JS-for的衍生对象
    JS-function
    Object Constructor
    前端发展史
    JavaScript中document.getElementById和document.write
    正则表达式把Paul换成Ringo
    11th blog
    10th week blog
  • 原文地址:https://www.cnblogs.com/xinxihua/p/14264744.html
Copyright © 2011-2022 走看看