Spring、hibernate以及struts2三大框架的整合
1、首先导入整合框架所需要的43个jar包：
2、配置xml文件：
<?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:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:jdbc="http://www.springframework.org/schema/jdbc" xmlns:p="http://www.springframework.org/schema/p" 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/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-4.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd"> <!-- 基于c3p0连接池的数据源 --> <!-- 加载外部配置文件 --> <context:property-placeholder location="classpath:db.properties"/> <!-- 连接池 --> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="driverClass" value="${jdbc.driver_class}"></property> <property name="jdbcUrl" value="${jdbc.url}"></property> <property name="user" value="${jdbc.username}"></property> <property name="password" value="${jdbc.password}"></property> <property name="initialPoolSize" value="${jdbc.initPoolSize}"></property> <property name="maxPoolSize" value="${jdbc.maxPoolSize}"></property> </bean> <!-- hibernate的sessionFactory --> <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"> <!-- 数据连接 --> <property name="dataSource" ref="dataSource"></property> <!-- 加载Hibernate的配置文件 --> <property name="configLocation" value="classpath:hibernate.cfg.xml"></property> <!-- 映射文件， 可以使用*作为通配符--> <property name="mappingLocations" value="classpath:com/hanqi/entity/*.hbm.xml"></property> </bean> <!-- bean --> <bean id="StudentDAOImpl" class="com.hanqi.dao.impl.StudentDAOImpl" p:sessionFactory-ref="sessionFactory"></bean> <bean id="StudentServiceImpl" class="com.hanqi.service.impl.StudentServiceImpl" p:studentDAO-ref="StudentDAOImpl"> </bean> <bean id="StudentAction" class="com.hanqi.action.StudentAction" scope="prototype" p:studentService-ref="StudentServiceImpl"> </bean> <!-- 声明式事务 --> <!-- 1.事务管理器 和sessionFactory关联 --> <bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager"> <property name="sessionFactory" ref="sessionFactory"></property> </bean> <!-- 事务通知 --> <tx:advice id="adv" transaction-manager="transactionManager"> <tx:attributes> <tx:method name="*"/><!-- 使用事务的方法 --> <tx:method name="get" read-only="true"/><!-- get开头的只读方法,不使用事务 --> <tx:method name="find" read-only="true"/> </tx:attributes> </tx:advice> <!-- 事务切点 --> <aop:config> <aop:advisor advice-ref="adv" pointcut="execution(* com.hanqi.service.*.*(..))"/> </aop:config> </beans>
3、配置properties文件(便于对引用数据库用户名称的修改)：
jdbc.driver_class=oracle.jdbc.driver.OracleDriver jdbc.url=jdbc:oracle:thin:@localhost:1521:orcl jdbc.username=test0816 jdbc.password=123 jdbc.initPoolSize=1 jdbc.maxPoolSize=10
4、配置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> <property name="hibernate.default_schema">TEST0816</property> <property name="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</property> <property name="hibernate.show_sql">true</property> <property name="hibernate.format_sql">true</property> <!-- 自动建表方式 --> <property name="hibernate.hbm2ddl.auto">update</property> </session-factory> </hibernate-configuration>
5、配置struts2.xml文件调用容器：
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd"> <struts> <!-- 设置过滤的扩展名 --> <constant name="struts.action.extension" value="do,action,,"></constant> <!-- 运行调用静态方法和静态属性 --> <constant name="struts.ognl.allowStaticMethodAccess" value="true"></constant> <package name="test" extends="struts-default"> <action name="getStudentList" class="StudentAction" method="getStudentList"> </action> </package> </struts>
6、导入jquery-easyui的所有包
7、配置web.xml文件（其中包含了转码的工具）：
<?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_2_5.xsd" id="WebApp_ID" version="2.5"> <display-name>Test42</display-name> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> <welcome-file>default.html</welcome-file> <welcome-file>default.htm</welcome-file> <welcome-file>default.jsp</welcome-file> </welcome-file-list> <!-- Spring --> <!-- needed for ContextLoaderListener --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:app.xml</param-value> </context-param> <!-- Bootstraps the root web application context before servlet initialization --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <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> <filter> <filter-name>struts2</filter-name> <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
配置好的文件如下：
整个的框架所需要的包和文件全部配置完毕，那么我们来拿一个项目来举个例子吧：
首先需要先建立底层的数据：
1：先建一个com.hanqi.dao的包在里面写一个dao层的接口：
package com.hanqi.dao; import java.util.List; import java.util.Map; import com.hanqi.entity.Student; public interface StudentDAO { List<Student> find(int page,int rows,String sort,Map<String, String>where); int getTotal(Map<String, String>where); }
1.1：在这个包的下面再建一个com.hanqi.dao.impl包，里面写上dao的实现类：
package com.hanqi.dao.impl; import java.util.ArrayList; import java.util.List; import java.util.Map; import org.hibernate.Query; import org.hibernate.SessionFactory; import com.hanqi.dao.StudentDAO; import com.hanqi.entity.Student; public class StudentDAOImpl implements StudentDAO {
//注意sessionFactory的调用，只写一个set方法即可，下面可以调用sessionFactory private SessionFactory sessionFactory; public void setSessionFactory(SessionFactory sessionFactory) { this.sessionFactory = sessionFactory; } @Override public List<Student> find(int page, int rows, String sort, Map<String, String> where) { List<Student> rtn=new ArrayList<Student>(); int num=(page-1)*rows; String sql="from Student where 1=1"; String sname=where.get("sname_s"); if(sname!=null&&!sname.equals("")) { sql+="and sname=:sname"; } String sclass=where.get("sclass_s"); if(sclass!=null&&!sclass.equals("")) { sql+=" and sclass=:sclass"; } //排序 if(sort!=null&&!sort.equals("")) { sql+=" order by "+sort; } Query q=sessionFactory.getCurrentSession().createQuery(sql); if(sname!=null&&!sname.equals("")) { q.setString("sname", sname); } if(sclass!=null&&!sclass.equals("")) { q.setString("sclass", sclass);; } rtn=q.setFirstResult(num). setMaxResults(rows).list(); return rtn; } @Override public int getTotal(Map<String, String> where) { int rtn=0; String sql="select count(1) from Student where 1=1"; String sname=where.get("sname_s"); if(sname!=null&&!sname.equals("")) { sql+="and sname=:sname"; } String sclass=where.get("sclass_s"); if(sclass!=null&&!sclass.equals("")) { sql+=" and sclass=:sclass"; } Query q=sessionFactory.getCurrentSession().createQuery(sql); if(sname!=null&&!sname.equals("")) { q.setString("sname", sname); } if(sclass!=null&&!sclass.equals("")) { q.setString("sclass", sclass);; } List<Object>lo=q.list(); if(lo!=null&&lo.size()>0) { rtn=Integer.parseInt(lo.get(0).toString()); } return rtn; } }
2.同样的道理我们来建service层：
先写接口再在接口的包下面写上实现的类：
package com.hanqi.service; import java.util.List; import java.util.Map; import com.hanqi.entity.Student; public interface StudentService { List<Student> getlist(int page,int rows,String sort,Map<String, String>where); int getTotal(Map<String, String>where); String getPageJSON(int page,int rows,String sort,Map<String, String>where); }
service接口的实现类：
package com.hanqi.service.impl; import java.util.List; import java.util.Map; import com.alibaba.fastjson.JSONObject; import com.hanqi.dao.StudentDAO; import com.hanqi.entity.Student; import com.hanqi.service.PageJSON; import com.hanqi.service.StudentService; public class StudentServiceImpl implements StudentService { private StudentDAO studentDAO; public void setStudentDAO(StudentDAO studentDAO) { this.studentDAO = studentDAO; } @Override public List<Student> getlist(int page, int rows, String sort, Map<String, String> where) { return studentDAO.find(page, rows, sort, where); } @Override public int getTotal(Map<String, String> where) { return studentDAO.getTotal(where); } @Override public String getPageJSON(int page, int rows, String sort, Map<String, String> where) { PageJSON<Student> pj=new PageJSON<>(); String rtn=JSONObject.toJSONString(pj); int total=studentDAO.getTotal(where); if(total>0) { List<Student>ls= studentDAO.find(page, rows, sort, where); pj.setTotal(total); pj.setRows(ls); rtn=JSONObject.toJSONString(pj); } return rtn; } }
注意：service还需要一个转JSON的实现类：
package com.hanqi.service; import java.util.ArrayList; import java.util.List; public class PageJSON<T> { //封装Json数据格式 private int total=0; private List<T> rows= new ArrayList<T>(); public int getTotal() { return total; } public void setTotal(int total) { this.total = total; } public List<T> getRows() { return rows; } public void setRows(List<T> rows) { this.rows = rows; } }
最后一步我们写上action类返回给struts.xml调用：
package com.hanqi.action; import java.util.HashMap; import java.util.Map; import javax.servlet.http.HttpServletResponse; import org.apache.struts2.ServletActionContext; import com.hanqi.service.StudentService; public class StudentAction { private StudentService studentService; public void setStudentService(StudentService studentService) { this.studentService = studentService; } private int page; private int rows; private String sort; private String order; private String sname_s; private String sclass_s; public int getPage() { return page; } public void setPage(int page) { this.page = page; } public int getRows() { return rows; } public void setRows(int rows) { this.rows = rows; } public String getSort() { return sort; } public void setSort(String sort) { this.sort = sort; } public String getOrder() { return order; } public void setOrder(String order) { this.order = order; } public String getSname_s() { return sname_s; } public void setSname_s(String sname_s) { this.sname_s = sname_s; } public String getSclass_s() { return sclass_s; } public void setSclass_s(String sclass_s) { this.sclass_s = sclass_s; } @Override public String toString() { return "StudentAction [page=" + page + ", rows=" + rows + ", sort=" + sort + ", order=" + order + ", sname_s=" + sname_s + ", sclass_s=" + sclass_s + "]"; } //返回数据列表 public void getStudentList() { //调用service try{ if(sname_s!=null) { sname_s=new String(sname_s.getBytes("ISO-8859-1"),"UTF-8"); } if(sclass_s!=null) { sclass_s=new String(sclass_s.getBytes("ISO-8859-1"),"UTF-8"); } Map<String, String> where= new HashMap<String, String>(); where.put("sname_s", sname_s); where.put("sclass_s", sclass_s); String ls=""; if(sort!=null&&order!=null) { ls=sort+" "+order; } String json =studentService.getPageJSON(page, rows,ls,where); HttpServletResponse response=ServletActionContext.getResponse(); response.getWriter().print(json); } catch (Exception e) { e.printStackTrace(); } } }
显示层调用struts.xml的action方法：
