近期用webwork做项目，有上传文件操作，在此记录一下，有部分内容来自网络，javascript脚本只支持IE，不支持firefox。
一、FileUploadAction.java 文件；
package ebizserve.cpd.view.action;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import org.apache.log4j.Logger;
import ebizserve.util.FileUtil;
public class FileUploadAction extends BaseAction {
private Logger logger = Logger.getLogger(FileUploadAction.class);
private static final long serialVersionUID = 5943699833329252614L;
// 对应<input type=file name=fileImages />中的file控件name名称；
private File[] fileImages;
// 获取 文件名称为 fileImages 的 file 控件上传文件的文件名称； 这边的fileImages+FileName可以自动得到file的文件名
private String[] fileImagesFileName;
// 默认调用方法
public String execute() {
File[] newFileImages = FileUtil.renameToFiles(fileImagesFileName,
fileImages);
if (newFileImages != null && newFileImages.length > 0) {
for (File file : newFileImages) {
try {
if (!FileUtil.verifyFile(file, new String[] { "jpg", "gif",
"jpeg", "png" })) {
this.addFieldError("errorimage",
"Error:Invalid File Type");
return "create";
}
} catch (Exception e) {
e.printStackTrace();
}
}
for (File fileImage : newFileImages) {
try {
FileInputStream fileIn;
int filesize = 0;
String imageName = fileImage.getName();
fileIn = new FileInputStream(fileImage);
filesize = fileIn.available();
logger.info("获得文件名称: " + imageName);
logger.info("获得文件大小：" + filesize);
FileUtil.saveFile(fileImage, imageName,
getProductFilePath());
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
}
return SUCCESS;
}
// 对应的 getXXX()/setXXX()方法；
public File[] getFileImages() {
return fileImages;
}
public void setFileImages(File[] fileImages) {
this.fileImages = fileImages;
}
public String[] getFileImagesFileName() {
return fileImagesFileName;
}
public void setFileImagesFileName(String[] fileImagesFileName) {
this.fileImagesFileName = fileImagesFileName;
}
}
二、BaseAction.java 文件；
package ebizserve.cpd.view.action;
import java.io.File;
import com.opensymphony.xwork.ActionSupport;
public class BaseAction extends ActionSupport {
private static final long serialVersionUID = -2796680436059696842L;
private static final String FILE_PATH = "d:/upload/"; // 文件realpath;
public String getProductFilePath() {
File filesPath = new File(FILE_PATH);
if (!filesPath.exists()) { // (canRead()
filesPath.mkdirs(); // mkdirs()
}
return FILE_PATH;
}
}
三、FileUtil.java 文件；
package ebizserve.util;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
public class FileUtil {
// 重命名文件；
public static File[] renameToFiles(String[] fileNames, File[] files) {
File[] retFiles = null;
if (fileNames != null && fileNames.length > 0) {
retFiles = new File[fileNames.length];
for (int i = 0, n = fileNames.length; i < n; i++) {
File dist = new File(fileNames[i]);
files[i].renameTo(dist);
retFiles[i] = dist;
}
}
return retFiles;
}
// save文件；
public static long saveFile(File file, String fileName, String filePath)
throws Exception {
if (file == null) {
return 0;
}
File filepath = new File(filePath);
if (!filepath.isDirectory())
filepath.mkdirs();
File filedesc = new File(filepath, fileName);
return copyFile(file, filedesc);
}
// copy文件；
public static long copyFile(File fromFile, File toFile) {
long len = 0;
InputStream in = null;
OutputStream out = null;
try {
in = new FileInputStream(fromFile);
out = new FileOutputStream(toFile);
byte[] t = new byte[1024];
int ii = 0;
while ((ii = in.read(t)) > 0) {
out.write(t, 0, ii);
len += ii;
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (in != null) {
try {
in.close();
} catch (Exception e) {
e.printStackTrace();
}
}
if (out != null) {
try {
out.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
return len;
}
// 验证文件正确性;
public static boolean verifyFile(File file, String[] exts) throws Exception {
boolean flag = false;
if (file != null) {
String ext = getExtension(file.getName());
if (ext == null) {
return false;
}
if (exts != null && exts.length > 0) {
if (exts[0].equals("*.*"))
return true;
for (int i = 0; i < exts.length; i++) {
if (ext.equalsIgnoreCase(exts[i])) {
flag = true;
break;
}
}
}
}
return flag;
}
// 取得文件扩展名;
public static String getExtension(String fileName) {
int newEnd = fileName.length();
int i = fileName.lastIndexOf('.', newEnd);
if (i != -1) {
return fileName.substring(i + 1, newEnd);
} else {
return null;
}
}
}
四、Web.xml配置文件；
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<filter>
<filter-name>webwork</filter-name>
<filter-class>
com.opensymphony.webwork.dispatcher.FilterDispatcher
</filter-class>
</filter>
<filter-mapping>
<filter-name>webwork</filter-name>
<url-pattern>*.action</url-pattern>
</filter-mapping>
</web-app>
五、xwork.xml 配置文件；
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE xwork PUBLIC "-//OpenSymphony Group//XWork 1.1.1//EN" "http://www.opensymphony.com/xwork/xwork-1.1.1.dtd">
<xwork>
<include file="webwork-default.xml" />
<package name="default" extends="webwork-default">
<interceptors>
<interceptor-stack name="validationStack">
<interceptor-ref name="validation" />
<interceptor-ref name="component" />
<interceptor-ref name="defaultStack" />
</interceptor-stack>
</interceptors>
<default-interceptor-ref name="validationStack" />
</package>
<!-- 引用多个 xwork_*.xml -->
<include file="action/xwork_upload.xml" />
</xwork>
六、xwork_upload.xml 配置文件；
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE xwork PUBLIC "-//OpenSymphony Group//XWork 1.1.1//EN" "http://www.opensymphony.com/xwork/xwork-1.1.1.dtd">
<xwork>
<package name="productbase" extends="default">
<interceptors>
<interceptor name="upload"
class="com.opensymphony.webwork.interceptor.FileUploadInterceptor">
<param name="maximumSize">10000000</param>
</interceptor>
<interceptor-stack name="uploadStack">
<interceptor-ref name="upload" />
<interceptor-ref name="defaultStack" />
</interceptor-stack>
</interceptors>
<default-interceptor-ref name="WSStack" />
<action name="doUpload"
class="ebizserve.cpd.view.action.FileUploadAction">
<result name="success" type="dispatcher">
<param name="location">/fileupload/success.jsp</param>
</result>
<interceptor-ref name="params" /><!-- 将请求中的参数设置到Action中去 -->
<interceptor-ref name="basicStack" />
<interceptor-ref name="uploadStack" />
<interceptor-ref name="model-driven" />
</action>
</package>
</xwork>
七、webwork.properties 属性文件；
# 保存的目录缺省使用 javax.servlet.context.tempdir
webwork.multipart.saveDir= javax.servlet.context.tempdir
webwork.multipart.maxSize=4097152
# 文件上传设置
# 用来处理HTTP POST请求,编码使用MIME-type multipart/form-data方式的
webwork.multipart.parser=jakarta
# 指定locale,编码
webwork.i18n.encoding=UTF-8
webwork.custom.i18n.resources=messages,acl,definition
# 开发模式设定
webwork.devMode = false
# 配置自动更新设定
webwork.configuration.xml.reload=true
# 国际化资源设定
webwork.i18n.reload=true