依赖的文件：
tomahawk-1.1.3.jar
commons-fileupload-1.2.jar
commons-io-1.3.1.jar
Tomahawk.tld
把这个三个包放在/WEB_INF/lib目录下面。
Jsf依赖的包也放在这个目录下面
Tomahawk.tld放在/WEB-INF目录下。
Jsf标签也放在这个目录下面。
这个主要讲
jsf上传文件，因此只罗列了上传文件用到的包和标签。
Web-xml文件如下：
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http
://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<context-param>
<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
<param-value>client</param-value>
</context-param>
<!-- Context Listener creates and sets the application handler -->
<!-- Faces Servlet -->
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- Faces Servlet Mapping -->
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.
jsf</url-pattern>
</servlet-mapping>
<filter>
<filter-name>ExtensionsFilter</filter-name>
<filter-class>
org.apache.
myfaces.component.html.util.ExtensionsFilter
</filter-class>
<init-param>
<param-name>uploadMaxFileSize</param-name>
<param-value>10m</param-value>
</init-param>
<init-param>
<param-name>uploadThresholdSize</param-name>
<param-value>100k</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>ExtensionsFilter</filter-name>
<!—要和<servlet-mapping>中的<servlet-name>一致-->
<servlet-name>Faces Servlet</servlet-name>
</filter-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
</web-app>
上传文件的页面如下：
<%@ include file="tags.jsp"%>
<f
:view>
<h
:form id="MyForm" enctype="multipart/form-data" >
<h
:messages globalOnly="true" styleClass="message"/>
<h
:panelGrid columns="3" border="0" cellspacing="5">
<h
:outputLabel for="myFileId" value="File
: "/>
<x
:inputFileUpload id="myFileId" value="#{myBean.myFile}" storage="file" required="true"/>
<h
:message for="myFileId"/>
<h
:outputLabel for="myParamId" value="Param
: "/>
<h
:selectOneMenu id="myParamId"
value="#{myBean.myParam}"
required="true">
<f
:selectItem itemLabel="" itemValue=""/>
<f
:selectItem itemLabel="MD5" itemValue="MD5"/>
<f
:selectItem itemLabel="SHA-1" itemValue="SHA-1"/>
<f
:selectItem itemLabel="SHA-256" itemValue="SHA-256"/>
<f
:selectItem itemLabel="SHA-384" itemValue="SHA-384"/>
<f
:selectItem itemLabel="SHA-512" itemValue="SHA-512"/>
</h
:selectOneMenu>
<h
:message for="myParamId"/>
<h
:outputText value=" "/>
<h
:commandButton value="Submit"
action="#{myBean.processMyFile}"/>
<h
:outputText value=" "/>
</h
:panelGrid>
</h
:form>
</f
:view>
其中tags.jsp文件如下：
<%@ page language="java" pageEncoding="GB18030"%>
<%@ page contentType="text/html" %>
<%@ taglib uri="http
://java.sun.com/
jsf/html" prefix="h" %>
<%@ taglib uri="http
://java.sun.com/
jsf/core" prefix="f" %>
<%@ taglib uri="http
://java.sun.com/jstl/core" prefix="c" %>
<%@ taglib uri="http
://
myfaces.apache.org/tomahawk" prefix="x"%>
Faces-config.xml文件如下：
<faces-config>
<managed-bean>
<managed-bean-name>myBean</managed-bean-name>
<managed-bean-class>
fileupload.MyBean
</managed-bean-class>
<managed-bean-scope>request</managed-bean-scope>
</managed-bean>
</faces-config>
MyBean如下：
package com.dhc;
import java.io.BufferedInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import javax.faces.application.FacesMessage;
import javax.faces.context.FacesContext;
import org.apache.
myfaces.custom.fileupload.UploadedFile;
public class oaMailMainForm {
private UploadedFile myFile;
public UploadedFile getMyFile() {
return myFile;
}
public void setMyFile(UploadedFile myFile) {
this.myFile = myFile;
}
public String uploadedfile() {
System.out.println("Entry");
try {
InputStream in = new BufferedInputStream(myFile.getInputStream());
try {
byte[] buffer = new byte[64 * 1024];
FileOutputStream fileOutputStream = new FileOutputStream(
"C
:\\My Files\\tst.jpg");// 这里可以把上传的文件写服务器目录，或者数据库中
while (in.read(buffer) > 0) {
fileOutputStream.write(buffer);
}
} finally {
in.close();
}
System.out.println("End");
return "success";
} catch (Exception x) {
System.out.print("Exception");
FacesMessage message = new FacesMessage(
FacesMessage.SEVERITY_FATAL, x.getClass().getName(), x
.getMessage());
FacesContext.getCurrentInstance().addMessage(null, message);
return null;
}
}
}
参考文献：http
://www.blogjava.net/cooky/archive/2007/10/02/150176.html
http
://blog.youkuaiyun.com/meteorlWJ/archive/2008/01/09/2032505.aspx
http
://tml808.javaeye.com/blog/166853
多文件上传配置
本文介绍在页面中实现多个文件上传时，每个文件上传控件都需要独立表单的配置方法。若共用同一表单，可能导致action无法响应的问题。文章通过示例代码详细展示了正确的设置方式。
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