上传页面:
<body> <div style="color:red"> <s:fielderror key="upload"/> </div> <s:form action="upload" enctype="multipart/form-data"> <s:textfield name="title" label="文件标题"/> <s:file name="upload" label="选择文件" /> <s:submit value="Upload"/> </s:form> </body>
<pre name="code" class="html"><?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd"> <struts> <!-- 指定全局国际化资源文件 --> <constant name="struts.custom.i18n.resources" value="mess"/> <constant name="struts.i18n.encoding" value="UTF-8"/> <!-- 使用感叹号的方式动态调用action,需要将value=“true” 默认为false--> <constant name="struts.enable.DynamicMethodInvocation" value="false" /> <constant name="struts.devMode" value="true" /> <!-- 指定一个文件上传的临时路径 --> <constant name="struts.multipart.saveDir" value="D:/uploadtemp"/> <package name="default" namespace="/" extends="struts-default"> <action name="login" class="com.hnust.cn.action.LoginAction"> <result name="error">/error.jsp</result> <result name="success">/welcome.jsp</result> </action> <action name="login2" class="com.hnust.cn.action.LoginAction2"> <result name="error">/error.jsp</result> <result name="success">/welcome.jsp</result> </action> <action name="regist" class="com.hnust.cn.action.RegistAction"> <result name="input">/registForm.jsp</result> <result name="success">/welcome.jsp</result> </action> <action name="upload" class="com.hnust.cn.action.UploadAction"> <!-- 动态设置上传文件的保存路径 --> <param name="savePath">/uploadFiles</param> <!-- 设置允许上传文件的类型 --> <param name="allowTypes">image/png,image/gif,image/jpeg</param> <result name="input">/uploadForm.jsp</result> <result name="success">/uploadSuccess.jsp</result> </action> <!-- <action name="*"> <result>/{1}.jsp</result> </action> --> </package> </struts>
<pre name="code" class="java">package com.hnust.cn.action; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import org.apache.struts2.ServletActionContext; import com.opensymphony.xwork2.ActionSupport; public class UploadAction extends ActionSupport { private String title;//封装文件标题请求参数的成员变量 private File upload;//封装上传文件域的成员变量 private String uploadContentType;//封装上传文件类型的成员变量; private String uploadFileName;//封装上传文件名的属性 private String savePath;//直接在struts.xml文件配置值的方法 private String allowTypes;//定义Action上传的文件类型,可以在strust.xml动态设置allowTypes的值 public String getAllowTypes() { return allowTypes; } public void setAllowTypes(String allowTypes) { this.allowTypes = allowTypes; } //接收struts.xml文件配置值的方法 public void setSavePath(String value){ this.savePath=value; } //获取上传文件的保存位置 public String getSavePath(){ return ServletActionContext.getServletContext().getRealPath(savePath); } public String getTitle() { return title; } public void setTitle(String title) { this.title = title; } public File getUpload() { return upload; } public void setUpload(File upload) { this.upload = upload; } public String getUploadContentType() { return uploadContentType; } public void setUploadContentType(String uploadContentType) { this.uploadContentType = uploadContentType; } public String getUploadFileName() { return uploadFileName; } public void setUploadFileName(String uploadFileName) { this.uploadFileName = uploadFileName; } @Override public String execute() throws Exception { // TODO Auto-generated method stub System.out.println("文件标题:"+title); System.out.println("文件类型:"+uploadContentType); System.out.println("文件名字:"+uploadFileName); System.out.println("文件保存路径:"+getSavePath()); FileOutputStream fos=new FileOutputStream(getSavePath()+"\\"+getUploadFileName()); FileInputStream fis=new FileInputStream(getUpload()); byte[] buffer=new byte[1024]; int len=0; while((len=fis.read(buffer))>0){ fos.write(buffer,0,len); } return SUCCESS; } @Override public void validate() { // TODO Auto-generated method stub String filterResult=filterTypes(getAllowTypes().split(",")); if(filterResult!=null){ addFieldError("upload", "上传文件不合法"); } } /*** * 过滤文件类型 * @param types 系统允许上传的文件类型 * @return 上传的文件类型可以上传 返回null,否则返回"error" */ public String filterTypes(String[] types){ String fileType=getUploadContentType(); //获取可以上传的所有文件类型 for(String type:types){ if(type.equals(fileType)){ return null; } } return ERROR; } // @Override // public void addFieldError(String fieldName, String errorMessage) { // // TODO Auto-generated method stub // String s=errorMessage; // String f=fieldName; // System.out.println(s); // System.out.println(f); // } }
上传成功页面:
<pre name="code" class="html"> <body> upload file success! <br> 文件标题:<s:property value="+title"/> 文件为:<img src="<s:property value="uploadFiles/'+uploadFileName"/>"/><br/> </body>
下面是Android上传文件:
后台其实我觉得是一样的。代码是借用的以为大神的
FormFiles:
package com.cn.hnustofsenior.pojo; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.InputStream; import java.lang.reflect.Field; import android.R.integer; /*** * 文件数组对象 * @author zzg * */ public class FormFile { /* 上传文件的数据 */ private byte[] data; private InputStream inStream; private File file; /* 文件名称 */ private String filname; /* 请求参数名称*/ private String parameterName; /* 内容类型 */ private String contentType = "application/octet-stream"; public FormFile(String filname, byte[] data, String parameterName, String contentType) { this.data = data; this.filname = filname; this.parameterName = parameterName; if(contentType!=null) this.contentType = contentType; } public FormFile(String filname, File file, String parameterName, String contentType) { this.filname = filname; this.parameterName = parameterName; this.file = file; try { this.inStream = new FileInputStream(file); } catch (FileNotFoundException e) { e.printStackTrace(); } if(contentType!=null) this.contentType = contentType; } public File getFile() { return file; } public InputStream getInStream() { return inStream; } public byte[] getData() { return data; } public String getFilname() { return filname; } public void setFilname(String filname) { this.filname = filname; } public String getParameterName() { return parameterName; } public void setParameterName(String parameterName) { this.parameterName = parameterName; } public String getContentType() { return contentType; } public void setContentType(String contentType) { this.contentType = contentType; } }
package com.cn.hnustofsenior.util; import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.OutputStream; import java.net.InetAddress; import java.net.Socket; import java.net.URL; import java.util.Map; import com.cn.hnustofsenior.pojo.FormFile; public class MultipartFormDataNetUtil { /** *多文件上传 * 直接通过HTTP协议提交数据到服务器,实现如下面表单提交功能: * <FORM METHOD=POST ACTION="http://192.168.1.101:8083/upload/servlet/UploadServlet" enctype="multipart/form-data"> <INPUT TYPE="text" NAME="name"> <INPUT TYPE="text" NAME="id"> <input type="file" name="imagefile"/> <input type="file" name="zip"/> </FORM> * @param path 上传路径(注:避免使用localhost或127.0.0.1这样的路径测试,因为它会指向手机模拟器,你可以使用http://www.iteye.cn或http://192.168.1.101:8083这样的路径测试) * @param params 请求参数 key为参数名,value为参数值 * @param file 上传文件 */ public static boolean post(String path, Map<String, String> params, FormFile[] files) throws Exception{ final String BOUNDARY = "---------------------------7da2137580612"; //数据分隔线 final String endline = "--" + BOUNDARY + "--\r\n";//数据结束标志 int fileDataLength = 0; for(FormFile uploadFile : files){//得到文件类型数据的总长度 StringBuilder fileExplain = new StringBuilder(); fileExplain.append("--"); fileExplain.append(BOUNDARY); fileExplain.append("\r\n"); fileExplain.append("Content-Disposition: form-data;name=\""+ uploadFile.getParameterName()+"\";filename=\""+ uploadFile.getFilname() + "\"\r\n"); fileExplain.append("Content-Type: "+ uploadFile.getContentType()+"\r\n\r\n"); fileExplain.append("\r\n"); fileDataLength += fileExplain.length(); if(uploadFile.getInStream()!=null){ fileDataLength += uploadFile.getFile().length(); }else{ fileDataLength += uploadFile.getData().length; } } StringBuilder textEntity = new StringBuilder(); for (Map.Entry<String, String> entry : params.entrySet()) {//构造文本类型参数的实体数据 textEntity.append("--"); textEntity.append(BOUNDARY); textEntity.append("\r\n"); textEntity.append("Content-Disposition: form-data; name=\""+ entry.getKey() + "\"\r\n\r\n"); textEntity.append(entry.getValue()); textEntity.append("\r\n"); } //计算传输给服务器的实体数据总长度 int dataLength = textEntity.toString().getBytes().length + fileDataLength + endline.getBytes().length; URL url = new URL(path); int port = url.getPort()==-1 ? 80 : url.getPort(); Socket socket = new Socket(InetAddress.getByName(url.getHost()), port); OutputStream outStream = socket.getOutputStream(); //下面完成HTTP请求头的发送 String requestmethod = "POST "+ url.getPath()+" HTTP/1.1\r\n"; outStream.write(requestmethod.getBytes()); String accept = "Accept: image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave-flash, application/xaml+xml, application/vnd.ms-xpsdocument, application/x-ms-xbap, application/x-ms-application, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*\r\n"; outStream.write(accept.getBytes()); String language = "Accept-Language: zh-CN\r\n"; outStream.write(language.getBytes()); String contenttype = "Content-Type: multipart/form-data; boundary="+ BOUNDARY+ "\r\n"; outStream.write(contenttype.getBytes()); String contentlength = "Content-Length: "+ dataLength + "\r\n"; outStream.write(contentlength.getBytes()); String alive = "Connection: Keep-Alive\r\n"; outStream.write(alive.getBytes()); String host = "Host: "+ url.getHost() +":"+ port +"\r\n"; outStream.write(host.getBytes()); //写完HTTP请求头后根据HTTP协议再写一个回车换行 outStream.write("\r\n".getBytes()); //把所有文本类型的实体数据发送出来 outStream.write(textEntity.toString().getBytes()); //把所有文件类型的实体数据发送出来 for(FormFile uploadFile : files){ StringBuilder fileEntity = new StringBuilder(); fileEntity.append("--"); fileEntity.append(BOUNDARY); fileEntity.append("\r\n"); fileEntity.append("Content-Disposition: form-data;name=\""+ uploadFile.getParameterName()+"\";filename=\""+ uploadFile.getFilname() + "\"\r\n"); fileEntity.append("Content-Type: "+ uploadFile.getContentType()+"\r\n\r\n"); outStream.write(fileEntity.toString().getBytes()); if(uploadFile.getInStream()!=null){ byte[] buffer = new byte[1024]; int len = 0; while((len = uploadFile.getInStream().read(buffer, 0, 1024))!=-1){ outStream.write(buffer, 0, len); } uploadFile.getInStream().close(); }else{ outStream.write(uploadFile.getData(), 0, uploadFile.getData().length); } outStream.write("\r\n".getBytes()); } //下面发送数据结束标志,表示数据已经结束 outStream.write(endline.getBytes()); BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream())); if(reader.readLine().indexOf("200")==-1){//读取web服务器返回的数据,判断请求码是否为200,如果不是200,代表请求失败 return false; } outStream.flush(); outStream.close(); reader.close(); socket.close(); return true; } /** *单文件上传 * 提交数据到服务器 * @param path 上传路径(注:避免使用localhost或127.0.0.1这样的路径测试,因为它会指向手机模拟器,你可以使用http://www.itcast.cn或http://192.168.1.10:8080这样的路径测试) * @param params 请求参数 key为参数名,value为参数值 * @param file 上传文件 */ public static boolean post(String path, Map<String, String> params, FormFile file) throws Exception{ return post(path, params, new FormFile[]{file}); } }