第六章SSH整合开发实例

1、test.java【界面】employee.javaemployeeservice.java【业务操作】hibernateemployeeserviceinter数据库login.jspemployee.javaemployeeservice.java【业务操作】hibernateemployeeserviceinter数据库loginaction.java表单失败成功mainframe.jsp雇员薪资管理系统 具体的步骤：1. 创建web项目2. 引入spring开发包3. 编写applicationcontext.xml文件(或者beans.xml)，把该文件放在src目录下。4. 测试一

2、下spring 是否成功。public class testservice public void sayhello()system.out.println("hello");public class test public static void main(string args) applicationcontext ac=new classpathxmlapplicationcontext("applicationcontext.xml");testservice testservice=(testservice)ac.getbean("

3、testservice");testservice.sayhello();<!- 配置测试对象testservice -><bean id="testservice" class="com.test.testservice"></bean>5. 加入hibernate开发包。6. 因为我们是ssh，所以我们hibernate的核心文件就被spring接管了。hibernate.cfg.xml 文件对象映射文件，sessionfactory在spring的文件中配置即可。7. 在 applicatio

4、ncontext.xml中配置数据源<!- 配置数据源 -> <bean id="datasource" class="mons.dbcp.basicdatasource" destroy-method="close"> <property name="driverclassname" value="com.mysql.jdbc.driver"/> <property name="url" value="jdbc:mysql

5、:/localhost:3306/emp1"/> <property name="username" value="root"/> <property name="password" value="123"/> <!- 连接池启动时的初始值 -><property name="initialsize" value="30"/> <!- 连接池的最大值 -> <property name=&quo

6、t;maxactive" value="500"/> <!- 最大空闲值.当经过一个高峰时间后，连接池可以慢慢将已经用不到的连接慢慢释放一部分，一直减少到maxidle为止 -><property name="maxidle" value="2"/><!- 最小空闲值.当空闲的连接数少于阀值时，连接池就会预申请去一些连接，以免洪峰来时来不及申请 -><property name="minidle" value="1"/></b

7、ean>8. 配置sessionfactory对象<bean id="sessionfactory" class="org.springframework.orm.hibernate3.localsessionfactorybean"> <property name="datasource" ref="datasource"/> <property name="mappingresources"> <list> <value>co

8、m/domain/employee.hbm.xml</value> </list> </property> <property name="hibernateproperties"> <value> hibernate.dialect=org.hibernate.dialect.oracledialect hibernate.hbm2ddl.auto=updatehibernate.show_sql=false </value> </property></bean>9. 编写do

9、main对象和映射文件employee.hbm.xml ->测试srping和hibernate是否可以结合使用->okpublic class employee private integer id;private string name;private string email;private string pwd;private integer grade;private java.util.date hiredate;private float salary;public employee(string name, string email, string pwd, int

10、eger grade,date hiredate, float salary) = name;this.email = email;this.pwd = pwd;this.grade = grade;this.hiredate = hiredate;this.salary = salary;public employee() <?xml version="1.0" encoding="utf-8"?><!doctype hibernate-mapping public "-/hibernate/hibern

11、ate mapping dtd 3.0/en" " <hibernate-mapping package="com.domain"><class name="employee" table="employee"><!- 主键策略 -><id name="id" type="java.lang.integer"><generator class="increment"/></id><

12、;property name="name" type="java.lang.string"><column name="name" length="64"/></property><property name="email" type="java.lang.string"><column name="email" length="64"/></property><p

13、roperty name="hiredate" type="java.util.date"><column name="hiredate" /></property><property name="salary" type="java.lang.float"><column name="salary" /></property><property name="pwd" type=&qu

14、ot;java.lang.string"><column name="pwd" length="32"/></property><property name="grade" type="java.lang.integer"><column name="grade" length="3"/></property></class></hibernate-mapping>public

15、 class test public static void main(string args) applicationcontext ac=new classpathxmlapplicationcontext("applicationcontext.xml");/testservice testservice=(testservice)ac.getbean("testservice");/testservice.sayhello();employee employee=new employee("ddc","abc&quo

16、t;,"111",1,new java.util.date(),234.56f);sessionfactory sessionfactory=(sessionfactory)ac.getbean("sessionfactory");session s=sessionfactory.opensession();transaction ts=s.begintransaction();s.save(employee);mit();启动mysql服务，连接数据库，观察记录是否插入成功。10. 建立接口，考虑分层设计public interface employe

17、eserviceinter /声明一些方法public void addemployee(employee e);public list<employee> showemployee();public void updemployee(employee e);/根据id删除雇员public void delemployee(integer id);public class employeeservice implements employeeserviceinter private sessionfactory sessionfactory;public sessionfactor

18、y getsessionfactory() return sessionfactory;public void setsessionfactory(sessionfactory sessionfactory) this.sessionfactory = sessionfactory;public void addemployee(employee e) session s=sessionfactory.opensession();transaction ts=s.begintransaction();s.save(e);mit();public void delemployee(integer

19、 id) / todo auto-generated method stubpublic list<employee> showemployee() / todo auto-generated method stubreturn null;public void updemployee(employee e) / todo auto-generated method stub<bean id="employeeservice" class="com.service.imp.employeeservice"><property

20、 name="sessionfactory" ref="sessionfactory"/></bean>11. 使用事务管理器来统一管理事务。<!- 配置事务管理器 -><bean id="txmanager" class="org.springframework.orm.hibernate3.hibernatetransactionmanager"> <property name="sessionfactory" ref="sessio

21、nfactory"/></bean><!- 启用事务注解 -><tx:annotation-driven transaction-manager="txmanager"/>/这里配置transactional的作用是让spring的事务管理器接管employeeservice中的所有事务transactionalpublic class employeeservice implements employeeserviceinter private sessionfactory sessionfactory;public s

22、essionfactory getsessionfactory() return sessionfactory;public void setsessionfactory(sessionfactory sessionfactory) this.sessionfactory = sessionfactory;public void addemployee(employee e) /session s=sessionfactory.opensession();/transaction ts=s.begintransaction();/s.save(e);/mit();sessionfactory.

23、getcurrentsession().save(e);public class test public static void main(string args) applicationcontext ac=new classpathxmlapplicationcontext("applicationcontext.xml");/testservice testservice=(testservice)ac.getbean("testservice");/testservice.sayhello();employee employee=new empl

24、oyee("aaddc","abc","111",1,new java.util.date(),234.56f);/sessionfactory sessionfactory=(sessionfactory)ac.getbean("sessionfactory");/session s=sessionfactory.opensession();/transaction ts=s.begintransaction();/s.save(employee);/mit();employeeserviceinter empl

25、oyeeserviceinter=(employeeserviceinter)ac.getbean("employeeservice");employeeserviceinter.addemployee(employee);12. 整合struts13. 引入struts开发包14. 创建struts-config.xml 方法 /web-inf 目录下 ，创建login.jsp和mainframe.jspstruts-config.xml <?xml version="1.0" encoding="utf-8"?><

26、;!doctype struts-config public "-/apache software foundation/dtd struts configuration 1.1/en" "/struts/dtds/struts-config_1_1.dtd"> <struts-config><form-beans><form-bean name="employeeform" type="com.web.forms.employeeform&

27、quot;/></form-beans><action-mappings><action path="/login" parameter="flag" name="employeeform" type="com.web.action.loginaction"><forward name="ok" path="/web-inf/mainframe.jsp"></forward><forward name=&

28、quot;err" path="/web-inf/login.jsp"></forward></action></action-mappings></struts-config>login.jsp <body> <h1>管理员登录</h1> <form action="/myssh02/login.do?flag=login" method="post"> id:<input type="text"

29、 name="id"/><br/><br/>pw:<input type="password" name="pwd"/><br/><br/> <input type="submit" value="登陆"> <input type="reset" value="重填"> </form> </body>mainframe.jsp <body

30、> <h1>请选择您需要的操作</h1> <br> <a href="#">添加雇员</a><br><br> <a href="#">显示雇员</a><br><br> <a href="#">删除雇员</a><br><br> <a href="#">查询雇员</a><br><br> &

31、lt;a href="#">退出</a><br><br> </body>public class employeeform extends actionform private string id;private string pwd;public string getid() return id;public void setid(string id) this.id = id;public string getpwd() return pwd;public void setpwd(string pwd) this.p

32、wd = pwd;public class loginaction extends dispatchaction /响应登陆请求public actionforward login(actionmapping mapping, actionform form,httpservletrequest request, httpservletresponse response)throws exception /取出表单，先简单验证employeeform employeeform=(employeeform)form;system.out.println("success");

33、if("123".equals(employeeform.getpwd()return mapping.findforward("ok");elsereturn mapping.findforward("err");/响应注销请求public actionforward loginout(actionmapping mapping, actionform form,httpservletrequest request, httpservletresponse response)throws exception return super

34、.execute(mapping, form, request, response);15. 在web.xml中配置我们的struts<servlet><servlet-name>struts</servlet-name><servlet-class>org.apache.struts.action.actionservlet</servlet-class><init-param><param-name>config</param-name><param-value>/web-inf/s

35、truts-config.xml</param-value></init-param><load-on-startup>0</load-on-startup></servlet><servlet-mapping><servlet-name>struts</servlet-name><url-pattern>*.do</url-pattern></servlet-mapping>16. 修改index.jsp <body> <body> &l

36、t;jsp:forward page="/web-inf/login.jsp"></jsp:forward> </body> </body>17. 让spring接管action问题：如果还没有在spring中配置struts组件，如何获得一个servicespring管理各层applicationcontext.xml<beean databasesource/><bean sessionfactory/><!- 配置事务管理器，统一管理sessionfactory的事务 -><bean

37、id="txmanager" class="org.springframework.orm.hibernate3.hibernatetransactionmanager"> <property name="sessionfactory" ref="sessionfactory"/></bean><!- 启用事务注解 -><tx:annotation-driven transaction-manager="txmanager"/><bea

38、n id="employeeservice" /><bean id="departmentservice"/>struts组件配置.原来的方法：每调用一次action，都需要调用classpathxmlapplicationcontext。因此我们可以让tomcat启动的时候，同时初始化spring容器和struts容器。我们的tomcat在启动的时候，就会实例化spring容器applicationcontext ac=new classpathxml("xx");servletcontext.setattribu

39、te("名字",ac)ac 内存:bean 对象 employeeservicebean 对象 databasesource.就可以在action文件中直接取serviceweb.xml<!- 指定spring的配置文件，默认从web根目录寻找配置文件，我们可以通过spring提供的classpath:前缀指定从类路径下寻找 -><!- tomcat在启动的时候，就会实例化spring容器，也就是实例化spring容器中的各种bean，并将其放入内存 -><context-param> <param-name>contextc

40、onfiglocation</param-name> <param-value>classpath:applicationcontext.xml</param-value></context-param><!- 对spring容器进行实例化 -><listener> <listener-class>org.springframework.web.context.contextloaderlistener</listener-class></listener>actionforward l

41、ogin/如果没有将我们的spring容器交给tomcat去管理，我们需要如下获取bean/applicationcontext ac=new classpathxmlapplicationcontext("applicationcontext.xml");/如果将spring容器交给tomcat去实例化，但是没有让spring容器来接管antion，我们需要如下获取/通过下列语句可以直接获取到spring容器实例，也就是applicationcontext/webapplicationcontext ctx=/webapplicationcontextutils.getw

42、ebapplicationcontext(this.getservlet().getservletcontext();/从spring容器中获取bean/employeeserviceinter employeeserviceinter=(employeeserviceinter)ctx.getbean("employeeservice");添加验证方法public interface employeeserviceinter /声明一些方法public void addemployee(employee e);public list<employee> sho

43、wemployee();public void updemployee(employee e);/根据id删除雇员public void delemployee(integer id);/如果该雇员存在，则返回该雇员的所有信息，否则返回空public employee checkemployee(employee e);实现验证方法public employee checkemployee(employee e) string hql="from employee where id=? and pwd=?"list<employee> list=sessionf

44、actory.getcurrentsession().createquery(hql).setstring(0, e.getid()+"").setstring(1,e.getpwd().list();if (list.size()=1)return list.get(0);elsereturn null;/响应登陆请求public actionforward login(actionmapping mapping, actionform form,httpservletrequest request, httpservletresponse response)throws

45、 exception employeeform employeeform=(employeeform)form;/if("123".equals(employeeform.getpwd()/return mapping.findforward("ok");/else/return mapping.findforward("err");/webapplicationcontext ctx=webapplicationcontextutils.getwebapplicationcontext(this.getservlet().getse

46、rvletcontext();employeeserviceinter employeeserviceinter=(employeeserviceinter)ctx.getbean("employeeservice");/ 构建一个employee对象employee e=new employee();e.setid(integer.parseint(employeeform.getid();e.setpwd(employeeform.getpwd();e=employeeserviceinter.checkemployee(e);if(e!=null)/把雇员信息放入se

47、ssion，以备后用request.getsession().setattribute("loginuser",e) ;return mapping.findforward("ok");elsereturn mapping.findforward("err");接管action1） 在struts-config.xml文件中添加如下代码配置:<!- 配置代理请求处理 delegatingrequestprocessor ,它的用处是 -><controller> <set-property propert

48、y="processorclass" value="org.springframework.web.struts.delegatingrequestprocessor"/></controller>2） 在applicationcontext.xml文件中配置我们的action路径<!- 配置action -><bean name="/login" class="com.web.action.loginaction"><property name="empl

49、oyeeserviceinter" ref="employeeservice"></property></bean>struts-config中的type就可以不要了3） 这我们就可以通过spring容器来获取action，和配置action的一些属性.loginaction中获取spring容器也可以不要了public class loginaction extends dispatchaction employeeserviceinter employeeserviceinter;public employeeserviceint

50、er getemployeeserviceinter() return employeeserviceinter;public void setemployeeserviceinter(employeeserviceinter employeeserviceinter) system.out.println("通过setemployeeserviceinter获取");this.employeeserviceinter = employeeserviceinter;/响应登陆请求public actionforward login(actionmapping mapping

51、, actionform form,httpservletrequest request, httpservletresponse response)throws exception /取出表单，先简单验证employeeform employeeform=(employeeform)form;/system.out.println("success");/if("123".equals(employeeform.getpwd()/return mapping.findforward("ok");/else/return mappin

52、g.findforward("err");/如果没有将我们的spring容器交给tomcat去管理，我们需要如下获取bean/applicationcontext ac=new classpathxmlapplicationcontext("applicationcontext.xml");/如果将spring容器交给tomcat去实例化，但是没有让spring容器来接管antion，我们需要如下获取/通过下列语句可以直接获取到spring容器实例，也就是applicationcontext/webapplicationcontext ctx=/weba

53、pplicationcontextutils./getwebapplicationcontext(this.getservlet().getservletcontext();/ 构建一个employee对象employee e=new employee();e.setid(integer.parseint(employeeform.getid();e.setpwd(employeeform.getpwd();/从spring容器中获取bean/employeeserviceinter employeeserviceinter=(employeeserviceinter)ctx.getbean(

54、"employeeservice");e=employeeserviceinter.checkemployee(e);if(e!=null)/把雇员信息放入session，以备后用request.getsession().setattribute("loginuser",e) ;return mapping.findforward("ok");elsereturn mapping.findforward("err");4） 通过使用sping来接管我们的action,还有一个好处,可以解决action 是单例的问题

55、.通过在applicationcontext.xml文件中配置属性 <bean scope=”singlton/prototype/request/sesssion/global session”/>18. 添加欢迎信息<body> <h1>欢迎$ 请选择您需要的操作</h1> <br> <a href="#">添加雇员</a><br><br> <a href="#">显示雇员</a><br

56、><br> <a href="#">删除雇员</a><br><br> <a href="#">查询雇员</a><br><br><a href="#">退出</a><br><br></body>19. 完成添加雇员的任务mainframe.jspemployeeaction.javaaddempui.jsppublic class employeeaction ex

57、tends dispatchaction private employeeserviceinter employeeserviceinter;public actionforward addempui(actionmapping mapping, actionform form,httpservletrequest request, httpservletresponse response)throws exception return mapping.findforward("goaddempui");/处理添加雇员请求public actionforward addem

58、p(actionmapping mapping, actionform form,httpservletrequest request, httpservletresponse response)throws exception /简单测试employeeform employeeform=(employeeform)form;/system.out.println(employeeform.getemail()+" "+employeeform.getgrade();/return null;/创建employee对象employee e=new employee();e

59、.setemail(employeeform.getemail();e.setgrade(integer.parseint(employeeform.getgrade() );e.sethiredate(new java.util.date();e.setname(employeeform.getname();e.setpwd(employeeform.getpwd();e.setsalary(float.parsefloat(employeeform.getsalary();try employeeserviceinter.addemployee(e); catch (exception e

60、1) system.out.println(e1.getmessage();return mapping.findforward("opererr");return mapping.findforward("operok");public employeeserviceinter getemployeeserviceinter() return employeeserviceinter;public void setemployeeserviceinter(employeeserviceinter employeeserviceinter) this.e

61、mployeeserviceinter = employeeserviceinter;在struts-config.xml中配置employeeaction<action-mappings><action path="/login" parameter="flag" name="employeeform"><forward name="ok" path="/web-inf/mainframe.jsp"></forward><forward n

62、ame="err" path="/web-inf/login.jsp"></forward></action><action path="/employee" parameter="flag" name="employeeform"><forward name="goaddempui" path="/web-inf/addempui.jsp"/></action></action-ma

63、ppings> 创建addempui.jsp<body><h1>添加雇员</h1><form action="$pagecontext.request.contextpath/employee.do?flag=addemp" method="post"><table><tr><td>name:</td><td><input type="text" name="name"/></td></tr><tr><td>e-mail:</td><td><input type="text" name="email"/><