我有一个问题，你可以帮帮我吗？我尝试使用jsf将用户名，名字，姓氏，电子邮件，密码，图像和插入日期以及时间插入到mysql数据库中。首先，我用2个字段做了 - 用户名和密码 - 一切正常，但是当我添加其他字段时 - 方法insertData（）停止工作，当我点击注册按钮时发生的事情...... 请帮帮我！
1.signUp.jsp
<?xml version="1.0" encoding="ISO-8859-1" ?>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib prefix="f" uri="http://java.sun.com/jsf/core"%>
<%@ taglib prefix="h" uri="http://java.sun.com/jsf/html"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<f:view locale="en">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:p="http://primefaces.org/ui">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
<title>Sign Up</title>
<link href="css/style.css" rel="stylesheet" style="text/css" media="screen"/>
</head>
<body>
<h:form id="signupForm" enctype="multipart/form-data">
<h2>Sign Up</h2>
<p><h:message for="password" style="color: red"></h:message></p>
<h:messages showDetail="true"/>
<h:panelGroup>
<table border="0">
<tr>
<td><h:outputLabel for="userName" value="Username"></h:outputLabel></td>
<td><h:inputText id="userName" value="#{manager_Bean.userName}" required="true" size="24"></h:inputText></td>
<td><h:message for="userName" style="color: red"></h:message></td>
</tr>
<tr>
<td><h:outputLabel value="First name"></h:outputLabel></td>
<td><h:inputText id="firstName" value="#{manager_Bean.firstName}" required="true" size="24"></h:inputText></td>
</tr>
<tr>
<td><h:outputLabel value="Last name"></h:outputLabel></td>
<td><h:inputText id="lastName" value="#{manager_Bean.lastName}" required="true" size="24"></h:inputText></td>
</tr>
<tr>
<td><h:outputLabel value="Email"></h:outputLabel></td>
<td><h:inputText id="email" value="#{manager_Bean.email}" required="true" size="24"></h:inputText></td>
</tr>
<tr>
<td><h:outputLabel for="password" value="Enter password"></h:outputLabel></td>
<td><h:inputSecret id="password" value="#{manager_Bean.password}" required="true" size="25">
<f:validator validatorId="passwordValidator"/>
<f:attribute name="confirm" value="#{confirm}"/>
</h:inputSecret></td>
<td><h:message for="password" style="color: red"></h:message></td>
</tr>
<tr>
<td><h:outputLabel for="confirm" value="Confirm password"></h:outputLabel></td>
<td><h:inputSecret id="confirm" binding="#{confirm}" required="true" size="25"></h:inputSecret></td>
<td><h:message for="confirm" style="color: red"></h:message></td>
</tr>
<tr>
<td>Portrait Photo: </td>
<td><input type="file" name="image" size="50"/></td>
</tr>
<tr>
<td><h:commandButton id="button" value="Sign Up" action="#{manager_Bean.insertData}"></h:commandButton></td>
<td><h:message for="button" style="color: green"></h:message></td>
</tr>
</table>
</h:panelGroup>
</h:form>
</body>
</html>
</f:view>
2.bean file(must insert data into db)
@SuppressWarnings("serial")
@ManagedBean(name="manager_Bean", eager=true)
@SessionScoped
@MultipartConfig(maxFileSize= 5242880)
public class managerBean implements Serializable{
static int c= 0;
private int id;
private String userName;
private String firstName;
private String lastName;
private String email;
private String password;
private String message;
private String databaseUserName;
private String databasePassword;
private UploadedFile image;
private Date createdDate;
Connection connection= null;
Statement statement= null;
ResultSet resultSet;
String SQL;
public int getId(){
return id;
}
public void setId(int id){
this.id= id;
}
public String getUserName(){
return userName;
}
public void setUserName(String userName){
this.userName= userName;
}
public String getFirstName(){
return firstName;
}
public void setFirstName(String firstName){
this.firstName= firstName;
}
public String getLastName(){
return lastName;
}
public void setLastName(String lastName){
this.lastName= lastName;
}
public String getEmail(){
return email;
}
public void setEmail(String email){
this.email= email;
}
public String getPassword(){
return password;
}
public void setPassword(String password){
this.password= password;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message= message;
}
public String getDatabaseUserName(){
return databaseUserName;
}
public void setDatabaseUserName(String databaseUserName){
this.databaseUserName= databaseUserName;
}
public String getDatabasePassword(){
return databasePassword;
}
public void setDatabasePassword(String databasePassword){
this.databasePassword= databasePassword;
}
public UploadedFile getImage(){
return image;
}
public void setImage(UploadedFile image){
this.image= image;
}
public Date getCreatedDate(){
return createdDate;
}
public void setCreatedDate(Date createdDate){
this.createdDate= createdDate;
}
public void insertUser(){
System.out.println("We are in insertUser()!");
System.out.println("image= "+image);
//if(image!= null){
try {
Connection connection= dataConnect.getConnection();
//execute a query
System.out.println("Inserting records to the table...");
statement= connection.createStatement();
SQL= "INSERT INTO Registration (userName,firstName,lastName,email,password,file,createdDate) VALUES (?,?,?,?,?,?,?)";
PreparedStatement prepStatement= connection.prepareStatement(SQL);
prepStatement.setString(1, userName);
prepStatement.setString(2, firstName);
prepStatement.setString(3, lastName);
prepStatement.setString(4, email);
prepStatement.setString(5, password);
System.out.println(image.getFileName());
InputStream inStream= image.getInputstream();
prepStatement.setBinaryStream(6, inStream, image.getSize());
SimpleDateFormat dateFormat= new SimpleDateFormat(DaTime);
if(createdDate!= null){
String date= dateFormat.format(createdDate);
Object object= date;
if(object== null){
prepStatement.setDate(7, null);
}else{
Date datE= Date.valueOf(new String(date));
prepStatement.setDate(7, datE);
}
}
c= prepStatement.executeUpdate();
System.out.println("User added Successfully!");
FacesMessage facesMessage= new FacesMessage("Successfully",image.getFileName()+"is uploaded!");
FacesContext.getCurrentInstance().addMessage("welcome",facesMessage);
statement.close();
connectionClose(connection);
} catch (SQLException eX) {
// TODO Auto-generated catch block
eX.printStackTrace();
}catch (IOException ioEx) {
// TODO: handle exception
ioEx.printStackTrace();
}
//end of if block}
}
public String insertData(){
insertUser();
System.out.println("We are in insertData()!");
System.out.println("c= "+c);
if(c> 0){
return "register";
}else {
return "error";
}
}
3. web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchemainstance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
<display-name>webProject</display-name>
<welcome-file-list>
<welcome-file>home.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>/faces/*</url-pattern>
</servlet-mapping>
<context-param>
<description>State saving method: 'client' or 'server' (=default). See JSF Specification 2.5.2</description>
<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
<param-value>client</param-value>
</context-param>
<context-param>
<param-name>javax.servlet.jsp.jstl.fmt.localizationContext</param-name>
<param-value>resources.application</param-value>
</context-param>
<listener>
<listener-class>com.sun.faces.config.ConfigureListener</listener-class>
</listener>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.faces</url-pattern>
</servlet-mapping>
</web-app>