Struts2-Fileupload-带参上传图片代码
jsp页面,带参数上传图片
<%@ page language="java" contentType="text/html; charset=GBK"%> <%@taglib prefix="s" uri="/struts-tags" %> <html> <head> <title>Struts 2 File Upload</title> </head> <body topmargin="2"> <FORM action="/brand/test" method="post" ENCTYPE="multipart/form-data"> <input type="hidden" name="username" value="username_value"/> <input type="hidden" name="password" value="password_value"/> <s:file name ="myFile" /> <INPUT type="submit" value="上传"> </FORM> <s:fielderror/> </body> </html>
struts.xml
<action name="test" class="brandAction" method="test"> <interceptor-ref name="fileUpload"> <param name="allowedTypes"> image/bmp,image/png,image/gif,image/jpeg,image/jpg,image/pjpeg,application/msword,application/vnd.ms-excel,application/x-shockwave-flash,flv-application/octet-stream,video/x-flv </param> </interceptor-ref> <interceptor-ref name="defaultStack" /> <result name="img">/products.jsp</result> <result name="input">/products.jsp</result> <result name="success">/products.jsp</result> <result name="error">/fileupload.jsp</result> </action>
action
private static final long serialVersionUID = 0x85369b8626L;
private static final int BUFFER_SIZE = 16384;
private File myFile;
private String fileName;
public void setMyFileFileName(String fileName)
{
this.fileName = fileName;
}
public void setMyFile(File myFile)
{
this.myFile = myFile;
}
public String test() throws Exception{
HttpServletRequest request = ServletActionContext.getRequest();
String username = request.getParameter("username");
String password = request.getParameter("password");
System.out.println("username="+username);
System.out.println("password="+password);
System.out.println("default-set-file"+myFile);
String root = request.getRealPath("/");
System.out.println("file-"+Upload.toFile(myFile,fileName,root,"/test/"));
return SUCCESS;
}
upload.java
package tools;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Date;
import org.apache.struts2.ServletActionContext;
public class Upload {
// 上传
private static final long serialVersionUID = 0x85369b8626L;
private static final int BUFFER_SIZE = 16384;
public synchronized static String toFile(File path,String fileName,String root,String fileType) {
String imageFileName="";
String random = String.valueOf(Math.random()).substring(2);
try {
Help.createDir(root+fileType);
imageFileName = (new StringBuilder(String.valueOf(fileType
+ random))).append(getExtention(fileName))
.toString();
File imageFile = new File((new StringBuilder(String
.valueOf(root))).append(imageFileName)
.toString());
// 判断后缀类型
int position1 = imageFileName.lastIndexOf('.');
String fileName1 = codeToString(imageFileName
.substring(position1 + 1));
if (fileName1.trim().equals("jpg")
|| fileName1.trim().equals("gif")
|| fileName1.trim().equals("bmp")
|| fileName1.trim().equals("swf")
|| fileName1.trim().equals("jpeg")
|| fileName1.trim().equals("pjpeg")
|| fileName1.trim().equals("word")
|| fileName1.trim().equals("excel")
|| fileName1.trim().equals("flv")) {
InputStream in = null;
OutputStream out = null;
try {
in = new BufferedInputStream(new FileInputStream(path), BUFFER_SIZE);
out = new BufferedOutputStream(new FileOutputStream(imageFile),
BUFFER_SIZE);
byte buffer[] = new byte[BUFFER_SIZE];
while (in.read(buffer) > 0) {
out.write(buffer);
}
} finally {
if (in != null)
in.close();
if (out != null)
out.close();
}
}
} catch (Exception exception) {
System.err.println(exception);
}
return imageFileName;
}
public static String getExtention(String fileName) {
int pos = fileName.lastIndexOf(".");
return fileName.substring(pos);
}
public static String codeToString(String str) {// 处理中文字符串的函数
String s = str;
try {
byte tempB[] = s.getBytes("iso8859-1");
s = new String(tempB);
return s;
} catch (Exception e) {
return s;
}
}
}
如要实现多图片上传，只要改两地方就行了。
1.jsp页面
<%@ page language="java" contentType="text/html; charset=GBK"%> <%@taglib prefix="s" uri="/struts-tags" %> <html> <head> <title>Struts 2 File Upload</title> </head> <body topmargin="2"> <FORM action="/brand/test" method="post" ENCTYPE="multipart/form-data"> <input type="hidden" name="username" value="username_value"/> <input type="hidden" name="password" value="password_value"/> <s:file name ="myFile" /> <s:file name ="myFile1" /> <INPUT type="submit" value="上传"> </FORM> <s:fielderror/> </body> </html>
2.action
private static final long serialVersionUID = 0x85369b8626L;
private static final int BUFFER_SIZE = 16384;
private File myFile;
private File myFile1;
private String fileName;
private String fileName1;
public void setMyFileFileName(String fileName)
{
this.fileName = fileName;
}
public void setMyFile(File myFile)
{
this.myFile = myFile;
}
public void setMyFile1FileName(String fileName)
{
this.fileName1 = fileName;
}
public void setMyFile1(File myFile1)
{
this.myFile1 = myFile1;
}
这样就可以获取到值了！