前言：
最近没什么事做，搭个框架写成博客记录下来，拉通一下之前所学知识.
话不多说，我们直接步入正题。
准备工作：
1/安装并配置java运行环境
2/数据库的安装配置（mysql）
3/安装并配置服务器(tomcat)
4/maven
5/ intellijidea的安装配置（本人使用的主要软件是intellijidea,没用eclipse什么的）
6/ 使用intellijidea创建一个web app项目。
貌似就这些了吧
导包
不同于以往的导包，由于我们创建的是maven的webapp项目，所以现在只需配置下pomxml这个配置文件，系统会自动到maven的中央仓库去下载相应的包.
本人的pom.xml配置文件如下（都写有说明的哈）：
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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>xrog</groupid> <artifactid>ssh</artifactid> <packaging>war</packaging> <version>1.0-snapshot</version> <name>ssh maven webapp</name> <url>http://maven.apache.org</url> <!-- 本人将配置包的版本信息都统一放入此处，方便以后管理--> <properties> <springversion>4.3.1.release</springversion> <hibernateversion>4.3.5.final</hibernateversion> <jstlversion>1.2</jstlversion> <taglibversion>1.1.2</taglibversion> <servletversion>3.0-alpha-1</servletversion> <jsonversion>1.9.13</jsonversion> <jacksonversion>2.5.0</jacksonversion> <mysqlversion>6.0.3</mysqlversion> <c3p0version>0.9.1.2</c3p0version> <log4jversion>1.2.17</log4jversion> <fileuploadversion>1.3.1</fileuploadversion> <lombokversion>1.16.10</lombokversion> </properties> <dependencies> <!-- 单元测试 --> <dependency> <groupid>junit</groupid> <artifactid>junit</artifactid> <version>3.8.1</version> <scope>test</scope> </dependency> <!-- spring--> <dependency> <groupid>org.springframework</groupid> <artifactid>spring-beans</artifactid> <version>${springversion}</version> </dependency> <dependency> <groupid>org.springframework</groupid> <artifactid>spring-core</artifactid> <version>${springversion}</version> </dependency> <dependency> <groupid>org.springframework</groupid> <artifactid>spring-context</artifactid> <version>${springversion}</version> </dependency> <dependency> <groupid>org.springframework</groupid> <artifactid>spring-orm</artifactid> <version>${springversion}</version> </dependency> <!-- spring web + spring mvc--> <dependency> <groupid>org.springframework</groupid> <artifactid>spring-web</artifactid> <version>${springversion}</version> </dependency> <dependency> <groupid>org.springframework</groupid> <artifactid>spring-webmvc</artifactid> <version>${springversion}</version> </dependency> <!-- hibernate配置--> <dependency> <groupid>org.hibernate</groupid> <artifactid>hibernate-core</artifactid> <version>${hibernateversion}</version> </dependency> <!-- hibernate 缓存, 视情况添加--> <dependency> <groupid>org.hibernate</groupid> <artifactid>hibernate-ehcache</artifactid> <version>${hibernateversion}</version> </dependency> <!-- jsp页面使用的jstl支持--> <dependency> <groupid>jstl</groupid> <artifactid>jstl</artifactid> <version>${jstlversion}</version> </dependency> <dependency> <groupid>taglibs</groupid> <artifactid>standard</artifactid> <version>${taglibversion}</version> </dependency> <dependency> <groupid>javax.servlet</groupid> <artifactid>servlet-api</artifactid> <version>${servletversion}</version> <scope>provided</scope> </dependency> <!-- database数据库连接 mysql包--> <dependency> <groupid>mysql</groupid> <artifactid>mysql-connector-java</artifactid> <version>${mysqlversion}</version> </dependency> <!-- 数据库连接池--> <dependency> <groupid>c3p0</groupid> <artifactid>c3p0</artifactid> <version>${c3p0version}</version> </dependency> <!-- json数据 使springmvc可以返回json值 ,视情况添加--> <dependency> <groupid>org.codehaus.jackson</groupid> <artifactid>jackson-mapper-asl</artifactid> <version>${jsonversion}</version> </dependency> <!-- jackson可以轻松的将java对象转换成json对象和xml文档,同样也可以将json、xml转换成java对象--> <dependency> <groupid>com.fasterxml.jackson.core</groupid> <artifactid>jackson-core</artifactid> <version>${jacksonversion}</version> </dependency> <dependency> <groupid>com.fasterxml.jackson.core</groupid> <artifactid>jackson-annotations</artifactid> <version>${jacksonversion}</version> </dependency> <dependency> <groupid>com.fasterxml.jackson.core</groupid> <artifactid>jackson-databind</artifactid> <version>${jacksonversion}</version> </dependency> <!-- log4j配置, 视情况添加--> <dependency> <groupid>log4j</groupid> <artifactid>log4j</artifactid> <version>${log4jversion}</version> </dependency> <!--文件 上传--> <dependency> <groupid>commons-fileupload</groupid> <artifactid>commons-fileupload</artifactid> <version>${fileuploadversion}</version> </dependency> <!-- lombok插件导包--> <dependency> <groupid>org.projectlombok</groupid> <artifactid>lombok</artifactid> <version>${lombokversion}</version> <scope>provided</scope> </dependency> </dependencies> <build> <finalname>ssh</finalname> </build></project> |
ok，配置后运行下maven,就会自动向中央仓库下载相应的包啦！（这个就不多说了）。
springmvc配置
我现在在这里把我配置后的结构拿出来给你们看下
我们先配置下springmvc的配置：resources/meta-inf/spring-mvc.xml
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<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/beanshttp://www.springframework.org/schema/beans/spring-beans-4.1.xsd http://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context-4.1.xsd http://www.springframework.org/schema/mvchttp://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd"> <!-- 启动注解驱动的spring mvc功能,注册请求url和注解pojo类方法的映射--> <mvc:annotation-driven /> <!-- 对模型视图名称的解析,在请求时模型视图名称添加前后缀 --> <context:component-scan base-package="com.ssh" /> <bean id="viewresolver" class="org.springframework.web.servlet.view.internalresourceviewresolver"> <property name="viewclass" value="org.springframework.web.servlet.view.jstlview" /> <property name="prefix" value="views/" /> <!-- 前缀 --> <property name="suffix" value=".jsp" /> <!-- 后缀 --> </bean> <!--这里是对静态资源的映射--> <mvc:resources mapping="/js/**" location="/resources/js/" /> <mvc:resources mapping="/css/**" location="/resources/css/" /> <mvc:resources mapping="/img/**" location="/resources/img/" /></beans> |
好了，我们现在修改下web.xml这个配置文件，完善下springmvc的配置， web.xml配置如下：
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<?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_3_0.xsd" version="3.0"> <!-- 地址为http://localhost:8080/ 显示的默认网页--> <welcome-file-list> <welcome-file>/index.jsp</welcome-file> </welcome-file-list> <!-- spring mvc config start--> <servlet> <servlet-name>spring</servlet-name> <servlet-class>org.springframework.web.servlet.dispatcherservlet</servlet-class> <init-param> <param-name>contextconfiglocation</param-name> <!-- 此处指向的的是springmvc的配置文件 --> <param-value>classpath:meta-inf/spring-mvc.xml</param-value> </init-param> <!--配置容器在启动的时候就加载这个servlet并实例化--> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>spring</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- spring mvc config end--></web-app> |
ok，springmvc配置完成，现在我们进行一下测试吧
在controller层新建一个maincontroller，内容如下
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package com.ssh.controller;import org.springframework.stereotype.controller;import org.springframework.web.bind.annotation.requestmapping;import org.springframework.web.bind.annotation.requestmethod;/** * created by xrog * on 2/1/2017.12:36 am */@controllerpublic class maincontroller { @requestmapping(value = "test", method = requestmethod.get) public string test(){// 实际返回的是views/test.jsp ,spring-mvc.xml中配置过前后缀 return "test"; }} |
test.jsp网页如下：
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<html><body><center><h2 style="color: #ff261a;">this is my test page!</h2></center></body></html> |
重启tomcat服务器， 然后浏览器访问如下图所示：
ps： tomcat默认端口是8080，我更改了端口号，如若你们为更改，正确的访问地址是localhost：8080/test
ok，成功访问。
springmvc+spring整合
这个就十分简单了， 配置applicationcontext.xml这个spring的配置文件如下：
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<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-4.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsdhttp://www.springframework.org/schema/mvchttp://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd"> <!-- 自动扫描 --> <context:component-scan base-package="com.ssh"> <!-- 扫描时跳过 @controller 注解的java类（控制器） --> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.controller"/> </context:component-scan></beans> |
完善web.xml配置文件如下：
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<?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_3_0.xsd" version="3.0"> <!-- 地址为http://localhost:8080/ 显示的默认网页--> <welcome-file-list> <welcome-file>/index.jsp</welcome-file> </welcome-file-list> <!--加载spring的配置文件到上下文中去--> <context-param> <param-name>contextconfiglocation</param-name> <param-value> classpath:meta-inf/applicationcontext.xml </param-value> </context-param> <!-- spring mvc config start--> <servlet> <servlet-name>spring</servlet-name> <servlet-class>org.springframework.web.servlet.dispatcherservlet</servlet-class> <init-param> <param-name>contextconfiglocation</param-name> <!-- 此处指向的的是springmvc的配置文件 --> <param-value>classpath:meta-inf/spring-mvc.xml</param-value> </init-param> <!--配置容器在启动的时候就加载这个servlet并实例化--> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>spring</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- spring mvc config end--> <!-- spring监听器 --> <listener> <listener-class>org.springframework.web.context.contextloaderlistener</listener-class> </listener> <!-- 字符集过滤 --> <filter> <filter-name>encodingfilter</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> <init-param> <param-name>forceencoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingfilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping></web-app> |
web.xml配置文件中更改了三处：引入spring配置文件 spring的监听器 以及 字符集过滤
ok，spring+springmvc配置完成，下面我们开始测试：
在service写一个testserviceimpl实现testservice接口并实现其test()方法， 代码如下：
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package com.ssh.service.impl;import com.ssh.service.testservice;import org.springframework.stereotype.service;/** * created by xrog * on 2/1/2017.12:58 am */@servicepublic class testserviceimpl implements testservice { public string test() { return "test"; }} |
ps:这里注意写@service注解
maincontroller控制器更改如下：
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package com.ssh.controller;import com.ssh.service.testservice;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.requestmethod;import org.springframework.web.bind.annotation.responsebody;/** * created by xrog * on 2/1/2017.12:36 am */@controllerpublic class maincontroller { @autowired private testservice testservice; @requestmapping(value = "test", method = requestmethod.get) public string test(){// 实际返回的是views/test.jsp ,spring-mvc.xml中配置过前后缀 return "test"; } @requestmapping(value = "springtest", method = requestmethod.get) public string springtest(){ return testservice.test(); }} |
控制器这里我们运用了spring的依赖注入自动装配。
在浏览器中输入地址调用springtest方法
yes，成功返回，说明我们之前的配置没问题
spring+springmvc+hibernate整合
好了，现在就缺hibernate这个框架了。。 我先给大家看些我搭建好之后的结构图吧
我们想来编写config.properties这个配置文件，里面存放的是hibernate的一些配置
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#database connection configjdbc.driver = com.mysql.jdbc.driverjdbc.url = jdbc:mysql://?????:3306/ssh?useunicode=true&characterencoding=utf-8jdbc.username = rootjdbc.password = ???#hibernate confighibernate.dialect = org.hibernate.dialect.mysqldialecthibernate.show_sql = truehibernate.format_sql = truehibernate.hbm2ddl.auto = update |
这里连接数据库的参数由于我是连接我晚上的数据库，因此我数据库地址和密码打了“？？？”,你们连接时改成自己本地的就ok了
下面配置hibernate，这里我为了方便，就直接写进applicationcontext.xml里面。配置后的applicationcontext.xml如下：
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<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-4.1.xsd http://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context-4.1.xsd http://www.springframework.org/schema/mvchttp://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd"> <!--********************************************配置spring***************************************--> <!-- 自动扫描 --> <context:component-scan base-package="com.ssh"> <!-- 扫描时跳过 @controller 注解的java类（控制器） --> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.controller"/> </context:component-scan> <!--********************************************配置hibernate********************************************--> <!--扫描配置文件(这里指向的是之前配置的那个config.properties)--> <context:property-placeholder location="classpath:/config.properties" /> <!--配置数据源--> <bean id="datasource" class="com.mchange.v2.c3p0.combopooleddatasource" destroy-method="close"> <property name="driverclass" value="${jdbc.driver}" /> <!--数据库连接驱动--> <property name="jdbcurl" value="${jdbc.url}" /> <!--数据库地址--> <property name="user" value="${jdbc.username}" /> <!--用户名--> <property name="password" value="${jdbc.password}" /> <!--密码--> <property name="maxpoolsize" value="40" /> <!--最大连接数--> <property name="minpoolsize" value="1" /> <!--最小连接数--> <property name="initialpoolsize" value="10" /> <!--初始化连接池内的数据库连接--> <property name="maxidletime" value="20" /> <!--最大空闲时间--> </bean> <!--配置session工厂--> <bean id="sessionfactory" class="org.springframework.orm.hibernate4.localsessionfactorybean"> <property name="datasource" ref="datasource" /> <property name="packagestoscan" value="com.ssh.entity" /> <property name="hibernateproperties"> <props> <prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop> <!--hibernate根据实体自动生成数据库表--> <prop key="hibernate.dialect">${hibernate.dialect}</prop> <!--指定数据库方言--> <prop key="hibernate.show_sql">${hibernate.show_sql}</prop> <!--在控制台显示执行的数据库操作语句--> <prop key="hibernate.format_sql">${hibernate.format_sql}</prop> <!--在控制台显示执行的数据哭操作语句（格式）--> </props> </property> </bean> <!-- 事物管理器配置 --> <bean id="transactionmanager" class="org.springframework.orm.hibernate4.hibernatetransactionmanager"> <property name="sessionfactory" ref="sessionfactory" /> </bean></beans> |
ok，到了这里，配置结束。下面进入测试阶段
实体类（entity)：
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package com.ssh.entity;import lombok.data;import javax.persistence.*;/** * created by xrog * on 2/2/2017.2:03 pm */@data@entity@table(name = "person")public class person { @id @generatedvalue private long id; @column(name = "created") private long created = system.currenttimemillis(); @column(name = "username") private string username; @column(name = "address") private string address; @column(name = "phone") private string phone; @column(name = "remark") private string remark;} |
ps：我这里用了一个@data注解，此注解会自动生成get方法，set方法，tostring方法等一系列方法，功能十分强大，不过需要安装插件以及导包， 有兴趣的可以百度下
当然，你也可以手动编写get/set/构造方法。
数据库访问层（repository）:
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package com.ssh.repository;import java.io.serializable;import java.util.list;/** * created by xrog * on 2/2/2017.2:28 pm */public interface domainrepository<t,pk extends serializable>{ t load(pk id); t get(pk id); list<t> findall(); void persist(t entity); pk save(t entity); void saveorupdate(t entity); void delete(pk id); void flush();} |
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package com.ssh.repository;import com.ssh.entity.person;/** * created by xrog * on 2/2/2017.2:25 pm */public interface personrepository extends domainrepository<person,long> {} |
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package com.ssh.repository.impl;import com.ssh.repository.personrepository;import com.ssh.entity.person;import org.hibernate.session;import org.hibernate.sessionfactory;import org.springframework.beans.factory.annotation.autowired;import org.springframework.stereotype.repository;import java.util.list;/** * created by xrog * on 2/2/2017.2:30 pm */@repositorypublic class personrepositoryimpl implements personrepository { @autowired private sessionfactory sessionfactory; private session getcurrentsession() { return this.sessionfactory.opensession(); } public person load(long id) { return (person)getcurrentsession().load(person.class,id); } public person get(long id) { return (person)getcurrentsession().get(person.class,id); } public list<person> findall() { return null; } public void persist(person entity) { getcurrentsession().persist(entity); } public long save(person entity) { return (long)getcurrentsession().save(entity); } public void saveorupdate(person entity) { getcurrentsession().saveorupdate(entity); } public void delete(long id) { person person = load(id); getcurrentsession().delete(person); } public void flush() { getcurrentsession().flush(); }} |
ps:我这里显示写了一个比较通用的接口，其他所有接口皆继承此接口， 再编写实现类
注意：我这里写的session产生是调用的sessionfactory的opensession（）这个方法。之前使用getcurrentsession()一直报错，后来百度了一下才知道，hibernate3版本可以使用getcurrentsession()来创建session，而hibernate4版本则不行。
服务层（service）:
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package com.ssh.service;import com.ssh.entity.person;/** * created by xrog * on 2/2/2017.2:39 pm */public interface personservice { long saveperson();} |
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package com.ssh.service.impl;import com.ssh.entity.person;import com.ssh.repository.personrepository;import com.ssh.service.personservice;import org.springframework.beans.factory.annotation.autowired;import org.springframework.stereotype.service;/** * created by xrog * on 2/2/2017.2:40 pm */@servicepublic class personserviceimpl implements personservice { @autowired private personrepository personrepository; public long saveperson() { person person = new person(); person.setusername("xrog"); person.setphone("18381005946"); person.setaddress("chendu"); person.setremark("this is xrog"); return personrepository.save(person); }} |
控制层（controller）:
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package com.ssh.controller;import com.ssh.entity.person;import com.ssh.service.personservice;import com.ssh.service.testservice;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.requestmethod;import org.springframework.web.bind.annotation.responsebody;/** * created by xrog * on 2/1/2017.12:36 am */@controllerpublic class maincontroller { @autowired private personservice personservice; @requestmapping(value = "saveperson", method = requestmethod.get) @responsebody public string saveperson(){ personservice.saveperson(); return "success!"; }} |
ok，编写完毕，我们重启下服务器然后测试：
我们在看下数据库，跟我们插入的数据对比下
ok，测试完毕，十分成功
以上就是本文的全部内容，希望本文的内容对大家的学习或者工作能带来一定的帮助，同时也希望多多支持服务器之家！
原文链接：http://www.cnblogs.com/xrog/p/6359706.html
