没有网站可以做备案吗,网站推广网络,Mac怎么搭建网站开发环境,用搬瓦工搭建wordpress注意点 private File image;//对应的就是表单中文件上传的那个输入域的名称#xff0c;Struts2框架会封装成File类型的private String imageFileName;// 上传输入域FileName 文件名private String imageContentType;// 上传文件的MIME类型 单个文件 1 package cn.itcast.ac…注意点 private File image;//对应的就是表单中文件上传的那个输入域的名称Struts2框架会封装成File类型的private String imageFileName;// 上传输入域FileName 文件名private String imageContentType;// 上传文件的MIME类型 单个文件 1 package cn.itcast.action;2 3 import java.io.File;4 import java.io.FileInputStream;5 import java.io.FileNotFoundException;6 import java.io.FileOutputStream;7 import java.io.InputStream;8 import java.io.OutputStream;9 import java.io.Serializable; 10 11 import javax.servlet.ServletContext; 12 13 import org.apache.commons.io.FileUtils; 14 import org.apache.struts2.ServletActionContext; 15 16 import com.opensymphony.xwork2.ActionContext; 17 import com.opensymphony.xwork2.ActionSupport; 18 19 public class UploadAction1 extends ActionSupport implements Serializable { 20 21 private File image;//对应的就是表单中文件上传的那个输入域的名称Struts2框架会封装成File类型的 22 private String imageFileName;// 上传输入域FileName 文件名 23 private String imageContentType;// 上传文件的MIME类型 24 25 public File getImage() { 26 return image; 27 } 28 29 30 31 public void setImage(File image) { 32 this.image image; 33 } 34 35 36 37 public String getImageFileName() { 38 return imageFileName; 39 } 40 41 42 43 public void setImageFileName(String imageFileName) { 44 this.imageFileName imageFileName; 45 } 46 47 48 49 public String getImageContentType() { 50 return imageContentType; 51 } 52 53 54 55 public void setImageContentType(String imageContentType) { 56 this.imageContentType imageContentType; 57 } 58 59 60 61 public String execute(){ 62 System.out.println(imageContentType); 63 try { 64 //处理实际的上传代码 65 //找到存储文件的真实路径 66 // System.out.println(imageFileName); 67 ServletContext sc ServletActionContext.getServletContext(); 68 String storePath sc.getRealPath(/files); 69 //构建输入输出流 70 // OutputStream out new FileOutputStream(storePath\\imageFileName); 71 // InputStream in new FileInputStream(image); 72 // byte b[] new byte[1024]; 73 // int len -1; 74 // while((lenin.read(b))!-1){ 75 // out.write(b, 0, len); 76 // } 77 // out.close(); 78 // in.close(); 79 80 FileUtils.copyFile(image, new File(storePath,imageFileName)); 81 82 ActionContext.getContext().put(message, 上传成功); 83 return SUCCESS; 84 } catch (Exception e) { 85 e.printStackTrace(); 86 return ERROR; 87 } 88 } 89 } jsp中 1 body 2 form action${pageContext.request.contextPath}/upload/upload1.action methodpost enctypemultipart/form-data 3 文件input typefile nameimage/br/ 4 input typesubmit value上传/ 5 /form 6 /body       多个文件上传 1 package cn.itcast.action;2 3 import java.io.File;4 import java.io.FileInputStream;5 import java.io.FileNotFoundException;6 import java.io.FileOutputStream;7 import java.io.InputStream;8 import java.io.OutputStream;9 import java.io.Serializable; 10 11 import javax.servlet.ServletContext; 12 13 import org.apache.commons.io.FileUtils; 14 import org.apache.struts2.ServletActionContext; 15 16 import com.opensymphony.xwork2.ActionContext; 17 import com.opensymphony.xwork2.ActionSupport; 18 19 public class UploadAction2 extends ActionSupport implements Serializable { 20 21 private File[] images;//对应的就是表单中文件上传的那个输入域的名称Struts2框架会封装成File类型的 22 private String[] imagesFileName;// 上传输入域FileName 文件名 23 private String[] imagesContentType;// 上传文件的MIME类型 24 25 26 27 public File[] getImages() { 28 return images; 29 } 30 31 32 33 public void setImages(File[] images) { 34 this.images images; 35 } 36 37 38 39 public String[] getImagesFileName() { 40 return imagesFileName; 41 } 42 43 44 45 public void setImagesFileName(String[] imagesFileName) { 46 this.imagesFileName imagesFileName; 47 } 48 49 50 51 public String[] getImagesContentType() { 52 return imagesContentType; 53 } 54 55 56 57 public void setImagesContentType(String[] imagesContentType) { 58 this.imagesContentType imagesContentType; 59 } 60 61 62 63 public String execute(){ 64 try { 65 66 if(images!nullimages.length0){ 67 ServletContext sc ServletActionContext.getServletContext(); 68 String storePath sc.getRealPath(/files); 69 for(int i0;iimages.length;i) 70 FileUtils.copyFile(images[i], new File(storePath,imagesFileName[i])); 71 } 72 ActionContext.getContext().put(message, 上传成功); 73 return SUCCESS; 74 } catch (Exception e) { 75 e.printStackTrace(); 76 return ERROR; 77 } 78 } 79 } jsp中 1 body 2 form action${pageContext.request.contextPath}/upload/upload2.action methodpost enctypemultipart/form-data 3 文件1input typefile nameimages/br/ 4 文件2input typefile nameimages/br/ 5 input typesubmit value上传/ 6 /form 7 /body struts.xml中配置 设置文件上传大小 1 constant namestruts.multipart.maxSize value52428800/constant 1 package nameupload namespace/upload extendsmypackage 2 action nameupload1 classcn.itcast.action.UploadAction1 methodexecute 3 result namesuccess/success.jsp/result 4 /action 5 action nameupload2 classcn.itcast.action.UploadAction2 methodexecute 6 result namesuccess/success.jsp/result 7 /action 8 /package  转载于:https://www.cnblogs.com/friends-wf/p/3766374.html