一、引入lib包
pom.xml,引入需要的jar包
<?xml version="1.0" encoding="UTF-8"?> <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/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.kszsa</groupId> <artifactId>ssht</artifactId> <version>1.0-SNAPSHOT</version> <packaging>war</packaging> <name>ssht Maven Webapp</name> <!-- FIXME change it to the project's website --> <url>http://www.example.com</url> <properties> <!-- springmvc --> <spring.version>4.0.9.RELEASE</spring.version> <!-- hibernate --> <hibernate.version>4.1.0.Final</hibernate.version> <hibernate-validator.version>4.2.0.Final</hibernate-validator.version> <!--连接池--> <druid.version>1.1.9</druid.version> <!-- mysql --> <mysql.version>5.1.27</mysql.version> <!-- 测试依赖包 --> <junit.version>4.7</junit.version> <!-- 工具包 --> <!-- json start --> <jackson.version>1.8.4</jackson.version> <json-lib.version>2.1</json-lib.version> <fastjson-lib.version>1.2.31</fastjson-lib.version> <gson.version>2.2.4</gson.version> <!--maven插件变量--> <tomcat.version>2.2</tomcat.version> <jetty.version>7.6.14.v20131031</jetty.version> <webserver.port>8080</webserver.port> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <maven.compiler.source>1.7</maven.compiler.source> <maven.compiler.target>1.7</maven.compiler.target> </properties> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aspects</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-context-support</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> <!-- spring orm --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-orm</artifactId> <version>${spring.version}</version> </dependency> <!-- spring mvc --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <!-- SPRING end --> <!-- web begin Spring MVC Test Framework 需要 servlet-api 3.0 以上 --> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.0.1</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>jsp-api</artifactId> <version>2.0</version> <scope>provided</scope> <exclusions> <exclusion> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <!-- aop aspect注解导包--> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjrt</artifactId> <version>1.8.12</version> </dependency> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.8.12</version> </dependency> <!-- WEB end --> <!-- hibernate --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-core</artifactId> <version>${hibernate.version}</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-ehcache</artifactId> <version>${hibernate.version}</version> </dependency> <!-- druid连接池 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>${druid.version}</version> <!-- <scope>runtime</scope> --> </dependency> <!-- mysql --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>${mysql.version}</version> <scope>runtime</scope> </dependency> <!-- TEST begin --> <!-- junit --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>${junit.version}</version> </dependency> <!-- 工具包 --> <!-- JSON begin --> <dependency> <groupId>org.codehaus.jackson</groupId> <artifactId>jackson-mapper-asl</artifactId> <version>${jackson.version}</version> </dependency> <dependency> <groupId>net.sf.json-lib</groupId> <artifactId>json-lib</artifactId> <version>${json-lib.version}</version> <classifier>jdk15</classifier> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>${fastjson-lib.version}</version> </dependency> <dependency> <groupId>com.google.code.gson</groupId> <artifactId>gson</artifactId> <version>${gson.version}</version> </dependency> <!-- JSON end --> </dependencies> <build> <finalName>ssht</finalName> <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) --> <plugins> <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> <configuration> <source>1.7</source> <target>1.7</target> <encoding>UTF-8</encoding> </configuration> </plugin> <!-- tomcat7插件 --> <plugin> <groupId>org.apache.tomcat.maven</groupId> <artifactId>tomcat7-maven-plugin</artifactId> <version>${tomcat.version}</version> <configuration> <port>${webserver.port}</port> <path>/${project.artifactId}</path> <uriEncoding>${project.build.sourceEncoding}</uriEncoding> </configuration> </plugin> <!-- 打包跳过单元测试 --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-surefire-plugin</artifactId> <version>2.18.1</version> <configuration> <skipTests>true</skipTests> </configuration> </plugin> </plugins> </pluginManagement> </build> </project>
二、编写配置文件
编写Spring的配置文件applicationContext.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:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:p="http://www.springframework.org/schema/p" 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-4.3.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd"> <!-- 扫描注解,注册bean --> <context:component-scan base-package="com.kszsa"> <!-- 跳过@Controller --> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> </beans>
springMVC的配置文件 spring-mvc.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:mvc="http://www.springframework.org/schema/mvc" 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" 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/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://cxf.apache.org/jaxws http://cxf.apache.org/schemas/jaxws.xsd"> <!-- mvc注解 --> <mvc:annotation-driven/> <!-- 扫描 --> <context:component-scan base-package="com.kszsa" use-default-filters="false"> <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> <!-- 视图解析 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/"></property> <property name="suffix" value=".jsp"></property> </bean> <!-- 解析静态资源 --> <mvc:default-servlet-handler/> </beans>
数据库连接信息配置文件config.properties
#database connection config jdbc.driver = com.mysql.jdbc.Driver jdbc.url = jdbc:mysql://127.0.0.1:3306/xcjgk?useUnicode=true&characterEncoding=utf-8 jdbc.username = root jdbc.password = root diver_name=com.mysql.jdbc.Driver validationQuery.sql=SELECT 1 #hibernate config hibernate.dialect = org.hibernate.dialect.MySQLDialect hibernate.show_sql = true hibernate.format_sql = true hibernate.hbm2ddl.auto =update
hibernate配置文件 spring-hibernate.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:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:util="http://www.springframework.org/schema/util" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:task="http://www.springframework.org/schema/task" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-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/tx http://www.springframework.org/schema/tx/spring-tx-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/task http://www.springframework.org/schema/task/spring-task-3.0.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd" default-autowire="byName" default-lazy-init="false"> <!-- hibernate --> <!-- 扫描properties配置文件 --> <context:property-placeholder location="classpath:config.properties"/> <!-- 配置数据源1 --> <bean name="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close"> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> <!-- 初始化连接大小 --> <property name="initialSize" value="0" /> <!-- 连接池最大使用连接数量 --> <property name="maxActive" value="50" /> <!-- 连接池最小空闲 --> <property name="minIdle" value="5" /> <!-- 获取连接最大等待时间 --> <property name="maxWait" value="60000" /> <!-- 配置间隔多久才进行一次检测,检测需要关闭的空闲连接,单位是毫秒 --> <property name="timeBetweenEvictionRunsMillis" value="60000" /> <!-- 配置一个连接在池中最小生存的时间,单位是毫秒 --> <property name="minEvictableIdleTimeMillis" value="300000" /> <property name="validationQuery" value="${validationQuery.sql}" /> <property name="testOnBorrow" value="false" /> <property name="testOnReturn" value="false" /> <property name="testWhileIdle" value="true" /> <!-- 开启Druid的监控统计功能 --> <property name="filters" value="stat" /> <!-- 打开removeAbandoned功能 --> <property name="removeAbandoned" value="true" /> <!-- 1800秒,也就是30分钟 --> <property name="removeAbandonedTimeout" value="3600" /> <!-- 关闭abanded连接时输出错误日志 --> <property name="logAbandoned" value="true" /> <!-- Oracle连接是获取字段注释 --> <property name="connectProperties"> <props> <prop key="remarksReporting">true</prop> </props> </property> </bean> <!-- session工厂 --> <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"> <property name="dataSource" ref="dataSource"></property> <property name="packagesToScan" value="com.kszsa"></property> <property name="hibernateProperties"> <props> <prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop> <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> </props> </property> </bean> <!-- 事务管理器 --> <bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager"> <property name="sessionFactory" ref="sessionFactory"></property> </bean> <!-- 开启事务注解 --> <tx:annotation-driven transaction-manager="transactionManager"/> </beans>
编写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" 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_3_0.xsd" version="3.0"> <display-name>ssht</display-name> <!-- 乱码的处理 --> <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> <!-- spring start --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml,classpath*:spring-*.xml</param-value> <!-- <param-value>classpath:applicationContext.xml</param-value>--> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- spring end --> <!-- spring mvc start --> <servlet> <servlet-name>spring-mvc</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>spring-mvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- spring mvc end --> </web-app>
至此配置文件编写完成
三、编写bean
编写User.java
package com.kszsa.user; import javax.persistence.*; @Entity @Table(name="user") public class User { @Id @Column(name="id") @GeneratedValue(strategy=GenerationType.IDENTITY) private Integer id; @Column(name="name") private String name; @Column(name="description") private String description; public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getDescription() { return description; } public void setDescription(String description) { this.description = description; } }
四、编写 DAO
编写通用接口ICommonDao.java
package com.kszsa.common.dao; import java.io.Serializable; import java.util.List; public interface ICommonDao<T,PK extends Serializable> { T load(PK id); T get(PK id); List<T> findAll(); void persist(T entity); void add(T entity); void update(T entity); void delete(PK id); void flush(); }
编写UserDao.java
package com.kszsa.user.dao; import com.kszsa.common.dao.ICommonDao; import com.kszsa.user.User; public interface UserDao extends ICommonDao<User, Integer> { }
编写UserDao实现类 UserDaoImp.java
package com.kszsa.user.dao; import com.kszsa.user.User; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Repository; import java.util.List; @Repository public class UserDaoImp implements UserDao { @Autowired private SessionFactory sessionFactory; private Session getSession() { return this.sessionFactory.getCurrentSession(); } @Override public User load(Integer id) { return (User)this.getSession().load(User.class,id); } @Override public User get(Integer id) { return (User) this.getSession().get(User.class, id); } @Override public List<User> findAll() { return this.getSession().createQuery("from User").list(); } @Override public void persist(User entity) { this.getSession().persist(entity); } @Override public void add(User entity) { this.getSession().save(entity); } @Override public void update(User entity) { this.getSession().update(entity); } @Override public void delete(Integer id) { User user = this.get(id); try{ this.getSession().delete(user); }catch(Exception e){ e.printStackTrace(); } } @Override public void flush() { this.getSession().flush(); } }
五、编写service层
编写UserService.java
package com.kszsa.user.service; import com.kszsa.user.User; import com.kszsa.user.dao.UserDaoImp; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import java.util.List; @Transactional @Service public class UserService { public void show(){ System.out.println("userService is called..."); } @Autowired private UserDaoImp userDaoImp; public User getById(Integer id) { return this.userDaoImp.get(id); } public List<User> findAll() { return this.userDaoImp.findAll(); } public void add(User user) { this.userDaoImp.add(user); } public void update(User user) { this.userDaoImp.update(user); } public void delete(Integer id) { this.userDaoImp.delete(id); } }
六、编写controller层
编写UserController.java
package com.kszsa.user.controllor; import com.alibaba.fastjson.JSONObject; import com.kszsa.user.User; import com.kszsa.user.service.UserService; 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; @Controller @RequestMapping("/user") public class UserControllor { @Autowired private UserService userService; @RequestMapping("hello") @ResponseBody public String hello(String name){ userService.show(); return "hello12345,"+name; } @RequestMapping("ceshi") public String ceshi(){ return "ceshi"; } @RequestMapping("add") @ResponseBody public String add(User user){ String result = "successs"; userService.add(user); return result; } @RequestMapping("delete") @ResponseBody public JSONObject delete(Integer id){ JSONObject jsonObject = new JSONObject(); Boolean success = true; String message = "删除用户成功"; try { userService.delete(id); }catch (Exception e){ success = true; message = "删除用户异常,异常信息"+e.getMessage(); } jsonObject.put("success",success); jsonObject.put("message",message); return jsonObject; } @RequestMapping("update") @ResponseBody public JSONObject update(User user){ JSONObject jsonObject = new JSONObject(); Boolean success = true; String message = "更新用户成功"; try { userService.update(user); }catch (Exception e){ success = true; message = "更新用户异常,异常信息"+e.getMessage(); } jsonObject.put("success",success); jsonObject.put("message",message); return jsonObject; } @RequestMapping("get") @ResponseBody public User get(Integer id){ return userService.getById(id); } }
七、编写前台页面
在webapp目录下,编写首页index.jsp
<html> <body> <h2>Hello World!</h2> </body> </html>
在webapp/WEB-INF/目录下,新建ceshi.jsp
<html> <head> <title>Title</title> </head> <body> AAAAAAAAAAAAAAAAAAAAAAAAAAAAA </body> </html>
至此,所有代码编写完成。
八、运行及接口测试
访问首页:http://localhost:8080/ssht/index.jsp
访问测试页面:http://localhost:8080/ssht/user/ceshi
访问hello,name的rest接口http://localhost:8080/ssht/user/hello?name=xiaodu
访问用户添加页面:http://localhost:8080/ssht/user/add?name=libai&description=shiren
去数据库中查询新增的记录
访问查询用户页面:http://localhost:8080/ssht/user/get?id=6
访问删除用户界面:http://localhost:8080/ssht/user/delete?id=6
到数据库中,查询,发现记录已经删除