标签：work open 一个 tac success bsp png action oid
<action name="fileUp" class="FileUpload.FileUpload"> <result>/message.jsp</result> </action>
单文件上传
1.Action类
1 package FileUpload; 2 3 import java.io.File; 4 import java.io.FileInputStream; 5 import java.io.FileNotFoundException; 6 import java.io.FileOutputStream; 7 8 import javax.servlet.ServletContext; 9 10 import org.apache.struts2.ServletActionContext; 11 12 import com.opensymphony.xwork2.ActionSupport; 13 14 public class FileUpload extends ActionSupport{ 15 16 private File fileName; 17 private String fileNameContentType; 18 private String fileNameFileName; 19 20 public String execute() throws Exception{ 21 22 ServletContext servletContext = ServletActionContext.getServletContext(); 23 String dir = servletContext.getRealPath("/files/"+fileNameFileName); 24 System.out.println(dir);
25 FileOutputStream outputStream = new FileOutputStream(dir); 26 FileInputStream inputStream = new FileInputStream(fileName); 27 byte[] buffer = new byte[1024]; 28 int len = 0; 29 // 从此输入流中将最多 b.length 个字节的数据读入一个 byte 数组中.读入缓冲区的字节总数，如果因为已经到达文件末尾而没有更多的数据，则返回 -1。 30 while((len = inputStream.read(buffer))!=-1){ 31 // 将指定 byte 数组中从偏移量 off 开始的 len 个字节写入此文件输出流。 32 outputStream.write(buffer, 0, len); 33 } 34 inputStream.close(); 35 outputStream.close();
36 return SUCCESS; 37 } 38 39 public File getFileName() { 40 return fileName; 41 } 42 43 public void setFileName(File fileName) { 44 this.fileName = fileName; 45 } 46 47 public String getFileNameContentType() { 48 return fileNameContentType; 49 } 50 51 public void setFileNameContentType(String fileNameContentType) { 52 this.fileNameContentType = fileNameContentType; 53 } 54 55 public String getFileNameFileName() { 56 return fileNameFileName; 57 } 58 59 public void setFileNameFileName(String fileNameFileName) { 60 this.fileNameFileName = fileNameFileName; 61 } 62 63 64 65 }
2.
1 <!DOCTYPE html> 2 <html> 3 <head> 4 <meta charset="UTF-8"> 5 <title>Insert title here</title> 6 </head> 7 <body> 8 9 <form action="/Struts2FileUpload/fileUp.action" method="post" enctype ="multipart/form-data"> 10 11 <input type="file" name="fileName" > 12 <input type="submit" value="提交"> 13 </form> 14 15 </body> 16 </html>
3.
<action name="fileUp" class="FileUpload.FileUpload"> <result>/message.jsp</result> </action>
标签：work open 一个 tac success bsp png action oid
原文地址：http://www.cnblogs.com/qlqwjy/p/7183419.html
