我正在尝试将 JSF 与 spring 和 hibernate 集成。
以下是我的代码：
LeaveBean.java
package com.nagra.bean;
import java.io.Serializable;
import java.sql.SQLException;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Properties;
import javax.annotation.Resource;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import org.hibernate.HibernateException;
import com.nagra.leaveapp.BO.LeaveInfoBo;
import com.nagra.leaveapp.model.LeaveInfo;
@ManagedBean(name="customer")
@SessionScoped
public class LeaveBean implements Serializable{
/**
*
*/
//private LeaveAppDo leaveAppDo=new LeaveAppDo();
LeaveInfoBo leaveinfoBo;
public LeaveInfoBo getLeaveinfoBo() {
return leaveinfoBo;
}
public void setLeaveinfoBo(LeaveInfoBo leaveinfoBo) {
this.leaveinfoBo = leaveinfoBo;
}
private String total_sick_leave;
private String total_paidoff_leave;
private String start_date;
private String end_date;
private String reason;
private String status;
private Date secondDate;
public Date getSecondDate() {
return secondDate;
}
public void setSecondDate(Date secondDate) {
this.secondDate = secondDate;
}
public String getTotal_sick_leave() {
return total_sick_leave;
}
public void setTotal_sick_leave(String total_sick_leave) {
this.total_sick_leave = total_sick_leave;
}
public String getTotal_paidoff_leave() {
return total_paidoff_leave;
}
public void setTotal_paidoff_leave(String total_paidoff_leave) {
this.total_paidoff_leave = total_paidoff_leave;
}
public String getStart_date() {
return start_date;
}
public void setStart_date(String start_date) {
this.start_date = start_date;
}
public String getEnd_date() {
return end_date;
}
public void setEnd_date(String end_date) {
this.end_date = end_date;
}
public String getReason() {
return reason;
}
public void setReason(String reason) {
this.reason = reason;
}
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
private static final long serialVersionUID = 1L;
//resource injection
@Resource(name="jdbc/leaveapp")
//private DataSource ds;
//if resource inject is not support, you still can get it manually.
/*public CustomerBean(){
try {
Context ctx = new InitialContext();
ds = (DataSource)ctx.lookup("jdbc:mysql://localhost:3306/leaveapp");
} catch (NamingException e) {
e.printStackTrace();
}
}*/
public List<LeaveInfo> getCustomerList() throws SQLException{
System.out.println("Getting In " );
return null;
// return leaveinfoBo.retrieveData();
}
public String addCustomer() throws HibernateException
{
/* String url = "jdbc:mysql://localhost:3306/leaveapp";
Connection con = DriverManager.getConnection(url,"root","root");
System.out.println(con);
if(con==null)
throw new SQLException("Can't get database connection");
String sql="insert into leaveinformation(start_date,end_date,reason,status)values(?,?,?,?)";
java.util.Date utilDate = new Date();
// Convert it to java.sql.Date
java.sql.Date date = new java.sql.Date(utilDate.getTime());
java.sql.Timestamp sqlDate = new java.sql.Timestamp(new java.util.Date().getTime());*/
DateFormat formatter ;
try
{
System.out.println("Start date " + getStart_date());
formatter = new SimpleDateFormat("yyyy-MM-dd");
Date startDate = formatter.parse(LeaveBean.this.getStart_date());
System.out.println(startDate);
Date endDate = formatter.parse(LeaveBean.this.getEnd_date());
// Days d = Days.daysBetween(startDate,endDate);
// int days = d.getDays();
@SuppressWarnings("deprecation")
java.sql.Date startdate=new java.sql.Date(startDate.getDate());
@SuppressWarnings("deprecation")
java.sql.Date enddate=new java.sql.Date(endDate.getDate());
/* System.out.println("Today is " +date );
PreparedStatement ps
= con.prepareStatement(sql);
ps.setDate(1,startdate,Calendar.getInstance(Locale.ENGLISH));
ps.setDate(2,enddate,Calendar.getInstance(Locale.ENGLISH));
ps.setString(3,CustomerBean.this.reason);
ps.setString(4,"Waiting");*/
LeaveInfo leave = new LeaveInfo();
System.out.println("Entering addCustomer() ");
leave.setEnd_date(enddate);
leave.setStart_date(startdate);
leave.setReason(reason);
leave.setStatus("Waiting");
System.out.println(leave.toString());
leaveinfoBo.save(leave);
clearall();
// Insert the row
/* ps.executeUpdate();
con.close();*/
sendmail();
}
catch(Exception e)
{
System.out.println("There is an error " + e.getStackTrace().toString());
e.printStackTrace();
}
return "";
}
private void clearall() {
// TODO Auto-generated method stub
setEnd_date("");
setStart_date("");
setReason("");
setStatus("");
}
public String sendmail()
{
// Recipient's email ID needs to be mentioned.
String to = "nsbharathi88@gmail.com";
// Sender's email ID needs to be mentioned
String from = "web@gmail.com";
// Assuming you are sending email from localhost
String host = "localhost";
// Get system properties
Properties properties = System.getProperties();
// Setup mail server
properties.setProperty("mail.smtp.host", host);
// Get the default Session object.
Session session = Session.getDefaultInstance(properties);
try{
// Create a default MimeMessage object.
MimeMessage message = new MimeMessage(session);
// Set From: header field of the header.
message.setFrom(new InternetAddress(from));
// Set To: header field of the header.
message.addRecipient(Message.RecipientType.TO,
new InternetAddress(to));
// Set Subject: header field
message.setSubject("This is the Subject Line!");
// Now set the actual message
message.setText("This is actual message");
// Send message
Transport.send(message);
System.out.println("Sent message successfully....");
}catch (MessagingException mex) {
mex.printStackTrace();
}
return "";
}
}
应用程序上下文.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
<!-- Database Configuration -->
<import resource="classes/spring/database/DataSource.xml"/>
<import resource="classes/spring/database/Hibernate.xml"/>
<!-- Beans Declaration -->
<import resource="classes/spring/bean/LeaveApp.xml"/>
</beans>
当我在 tomcat 服务器上运行它时出现以下错误：
Start date 2012-02-03
java.lang.NullPointerException
at com.nagra.bean.LeaveBean.addCustomer(LeaveBean.java:167)
Fri Feb 03 00:00:00 IST 2012
Entering addCustomer()
LeaveInfo [id=0, total_sick_leave=15, total_paidoff_leave=15, start_date=1970-01- 01, end_date=1970-01-01, reason=cfklsn, status=Waiting]
There is an error [Ljava.lang.StackTraceElement;@fc644a
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.el.parser.AstValue.invoke(AstValue.java:262)
at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:278)
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
at javax.faces.component.UICommand.broadcast(UICommand.java:315)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:395)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:250)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:166)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)