20171105_shiyan_upanddown Struts上传、下载功能结合（集合模拟数据库）
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Struts上传、下载功能结合
- /20171105_shiyan_upanddown/src/nuc/sw/action/DocDownloadAction.java
package nuc.sw.action;import java.io.InputStream;import org.apache.struts2.ServletActionContext;import com.opensymphony.xwork2.ActionSupport;public class DocDownloadAction extends ActionSupport { private String downPath; //返回InputStream流方法 public InputStream getInputStream() throws Exception{ downPath = new String(downPath.getBytes("ISO8859-1"),"utf-8"); //默认从WebAPP根目录下取资源 return ServletActionContext.getServletContext().getResourceAsStream(downPath); } public String getDownPath(){ return downPath; } public void setDownPath(String downPath){ this.downPath=downPath; } public String getDownloadFileName(){ //downPath.subString是截取downPath的一部分 String downFileName=downPath.substring(7); try{ downFileName = new String(downFileName.getBytes("iso8859-1"),"utf-8"); //downFileName=new String(downFileName.getBytes(),"utf-8"); }catch(Exception e){ e.printStackTrace(); } return downFileName; } @Override public String execute() throws Exception { return SUCCESS; } }- /20171105_shiyan_upanddown/src/nuc/sw/action/DocUploadAction.java
package nuc.sw.action;import java.io.BufferedInputStream;import java.io.BufferedOutputStream;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.util.Date;import org.apache.struts2.ServletActionContext;import com.opensymphony.xwork2.ActionSupport;public class DocUploadAction extends ActionSupport { private String name; private File[] upload; private String[] uploadContentType; private String[] uploadFileName; private String savePath; private Date createTime; public String getName() { return name; } public void setName(String name) { this.name = name; } 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; } public String getSavePath() { return savePath; } public void setSavePath(String savePath) { this.savePath = savePath; } public Date getCreateTime(){ createTime=new Date(); return createTime; } public static void copy(File source,File target){ InputStream inputStream=null; OutputStream outputStream=null; try{ inputStream=new BufferedInputStream(new FileInputStream(source)); outputStream=new BufferedOutputStream(new FileOutputStream(target)); byte[] buffer=new byte[1024]; int length=0; while((length=inputStream.read(buffer))>0){ outputStream.write(buffer, 0, length); } }catch(Exception e){ e.printStackTrace(); }finally{ if(null!=inputStream){ try { inputStream.close(); } catch (IOException e2) { e2.printStackTrace(); } } if(null!=outputStream){ try{ outputStream.close(); }catch(Exception e2){ e2.printStackTrace(); } } } } @Override public String execute() throws Exception { for(int i=0;i<upload.length;i++){ String path=ServletActionContext.getServletContext().getRealPath(this.getSavePath())+"\\"+this.uploadFileName[i]; File target=new File(path); copy(this.upload[i],target); } return SUCCESS; } }- /20171105_shiyan_upanddown/src/nuc/sw/action/LoginAction.java
package nuc.sw.action;import java.util.regex.Pattern;import com.opensymphony.xwork2.ActionContext;import com.opensymphony.xwork2.ActionSupport;public class LoginAction extends ActionSupport { //属性驱动校验 private String username; private String password; public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } //手动检验 @Override public void validate() { // TODO Auto-generated method stub //进行数据校验，长度6~15位 if(username.trim().length()<6||username.trim().length()>15||username==null) { this.addFieldError("username", "用户名长度不合法！"); } if(password.trim().length()<6||password.trim().length()>15||password==null) { this.addFieldError("password", "密码长度不合法！"); } } //登陆业务逻辑 public String loginMethod() { if(username.equals("chenghaoran")&&password.equals("12345678")) { ActionContext.getContext().getSession().put("user", username); return "loginOK"; }else { this.addFieldError("err","用户名或密码不正确！"); return "loginFail"; } } //手动校验validateXxx public void validateLoginMethod() { //使用正则校验 if(username==null||username.trim().equals("")) { this.addFieldError("username","用户名不能为空！"); }else { if(!Pattern.matches("[a-zA-Z]{6,15}", username.trim())) { this.addFieldError("username", "用户名格式错误！"); } } if(password==null||password.trim().equals("")) { this.addFieldError("password","密码不能为空！"); }else { if(!Pattern.matches("\\d{6,15}", password.trim())) { this.addFieldError("password", "密码格式错误！"); } } }}- /20171105_shiyan_upanddown/src/nuc/sw/interceptor/LoginInterceptor.java
package nuc.sw.interceptor;import com.opensymphony.xwork2.Action;import com.opensymphony.xwork2.ActionContext;import com.opensymphony.xwork2.ActionInvocation;import com.opensymphony.xwork2.ActionSupport;import com.opensymphony.xwork2.interceptor.AbstractInterceptor;public class LoginInterceptor extends AbstractInterceptor { @Override public String intercept(ActionInvocation arg0) throws Exception { // TODO Auto-generated method stub //判断是否登陆，通过ActionContext访问Session ActionContext ac=arg0.getInvocationContext(); String username=(String)ac.getSession().get("user"); if(username!=null&&username.equals("chenghaoran")) { return arg0.invoke();//放行 }else { ((ActionSupport)arg0.getAction()).addActionError("请先登录！"); return Action.LOGIN; } }}- /20171105_shiyan_upanddown/src/struts.xml
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1.7//EN" "http://struts.apache.org/dtds/struts-2.1.7.dtd"><struts> <constant name="struts.i18n.encoding" value="utf-8"/> <package name="default" extends="struts-default"> <interceptors> <interceptor name="login" class="nuc.sw.interceptor.LoginInterceptor"></interceptor> </interceptors> <action name="docUpload" class="nuc.sw.action.DocUploadAction"> <!-- 使用fileUpload拦截器 --> <interceptor-ref name="fileUpload"> <!-- 指定允许上传的文件大小最大为50000字节 --> <param name="maximumSize">50000</param> </interceptor-ref> <!-- 配置默认系统拦截器栈 --> <interceptor-ref name="defaultStack"/> <!-- param子元素配置了DocUploadAction类中savePath属性值为/upload --> <param name="savePath">/upload</param> <result>/showFile.jsp</result> <!-- 指定input逻辑视图，即不符合上传要求，被fileUpload拦截器拦截后，返回的视图页面 --> <result name="input">/uploadFile.jsp</result> </action> <action name="docDownload" class="nuc.sw.action.DocDownloadAction"> <!-- 指定结果类型为stream --> <result type="stream"> <!-- 指定下载文件的文件类型 text/plain表示纯文本 --> <param name="contentType"> application/msword,text/plain </param> <!-- 指定下载文件的入口输入流 --> <param name="inputName">inputStream</param> <!-- 指定下载文件的处理方式与文件保存名 attachment表示以附件形式下载，也可以用inline表示内联即在浏览器中直接显示，默认值为inline --> <param name="contentDisposition"> attachment;filename="${downloadFileName}" </param> <!-- 指定下载文件的缓冲区大小，默认为1024 --> <param name="bufferSize">40960</param> </result> </action> <action name="loginAction" class="nuc.sw.action.LoginAction" method="loginMethod"> <result name="loginOK"> /uploadFile.jsp </result> <result name="loginFail"> /login.jsp </result> <result name="input"> /login.jsp </result> </action> </package></struts>- /20171105_shiyan_upanddown/WebContent/login.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@ taglib prefix="s" uri="/struts-tags" %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>登录页</title><s:head/></head><body> <s:actionerror/> <s:fielderror fieldName="err"></s:fielderror> <s:form action="loginAction" method="post"> <s:textfield label="用户名" name="username"></s:textfield> <s:password label="密码" name="password"></s:password> <s:submit value="登陆"></s:submit> </s:form></body></html>- /20171105_shiyan_upanddown/WebContent/showFile.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@ taglib prefix="s" uri="/struts-tags" %><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>显示上传文档</title></head><body><center> <font style="font-size:18px;color:red">上传者：<s:property value="name"/></font> <table width="45%" cellpadding="0" cellspacing="0" border="1"> <tr> <th>文件名称</th> <th>上传者</th> <th>上传时间</th> </tr> <s:iterator value="uploadFileName" status="st" var="doc"> <tr> <td align="center"> <a href="docDownload.action?downPath=upload/<s:property value="#doc"/>"> <s:property value="#doc"/> </a> </td> <td align="center"><s:property value="name"/></td> <td align="center"><s:date name="createTime" format="yyyy-MM-dd HH:mm:ss"/></td> </tr> </s:iterator> </table></center></body></html>- /20171105_shiyan_upanddown/WebContent/uploadFile.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@ taglib prefix="s" uri="/struts-tags" %><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>多文件上传</title></head><body><center><s:form action="docUpload" method="post" enctype="multipart/form-data"> <s:textfield name="name" label="姓名" size="20"/> <s:file name="upload" label="选择文档" size="20"/> <s:file name="upload" label="选择文档" size="20"/> <s:file name="upload" label="选择文档" size="20"/> <s:submit value="确认上传" align="center"/></s:form></center></body></html>阅读全文
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