首先得说这是一件非常细致的工作。造成耽误这么长时间都是因为一些细节的问题。废话少说，切入正题。
主要遇见了一下几个问题。
第一，在使用spring对Struts2Action进行管理的时候，怎么也访问不到Action类，最后发现在application.xml中配置包路径的时候多了用一个字符。
applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd"> <context:annotation-config></context:annotation-config> <context:component-scan base-package="com.medvision"></context:component-scan> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="oracle.jdbc.driver.OracleDriver"/> <property name="url" value="jdbc:oracle:thin:@10.10.9.204:1521:oracle"/> <property name="username" value="qustion"/> <property name="password" value="tianjian"/> <!-- 连接池启动时的初始值 --> <property name="initialSize" value="1"/> <!-- 连接池的最大值 --> <property name="maxActive" value="500"/> <!-- 最大空闲值.当经过一个高峰时间后，连接池可以慢慢将已经用不到的连接慢慢释放一部分，一直减少到maxIdle为止 --> <property name="maxIdle" value="2"/> <!-- 最小空闲值.当空闲的连接数少于阀值时，连接池就会预申请去一些连接，以免洪峰来时来不及申请 --> <property name="minIdle" value="1"/> </bean> <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <property name="configLocation" value="classpath:hibernate.cfg.xml"> </property> <property name="dataSource" ref="dataSource"></property> </bean> <bean id="txManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"> <property name="sessionFactory" ref="sessionFactory"/> </bean> <tx:annotation-driven transaction-manager="txManager"/> <aop:aspectj-autoproxy></aop:aspectj-autoproxy> </beans>
第二个问题，在Struts的Acton中获取的uploadFileName总是为空。因为项目的文件太多，每次启动tomcat都会花费很长的时间，于是我就又新建了一个一个项目，使用原来的类库，很郁闷的是，如果加上spring框架，就会出现错。如果，不加上Spring框架，然后就不会这个问题。曾经一度认为，是Spring接管Struts的Action的时候出现了问题。所以，就一直在查找这方面的原因，后来发现是第一个错误导致了这种原因。解决后，例子程序能够正常运行，但是，项目还是不能够达到预期的效果。换了类库 ，重新 建了Acton尝试了很多方法都不行。最后发现时Extjs的错误。在form中必须fileUpload 属性和uploadfile属性设为true.这样问题 解决了。
下面就总结一下吧，需要注意的几个地方：
在Action中必须有三个属性 File *filename，*contentType
在Struts中必须配置相应的拦截器。
第三前台一定要有两个属性。
upload.js
Ext.onReady(function() { var fileForm = new Ext.form.FormPanel({ title : "", renderTo : "fileUpload", fileUpload : true, layout : "table", id : "fileUploadForm", uploadfile:true, items:[ { xtype:'panel', frame:true, width:700, height:500, layout:'form', items:[{ name:'id', hidden:true },{ xtype:'textfield', name:'deptName', fieldLabel:'科室名称' },{ xtype:'textfield', name:'deptCode', fieldLabel:'科室编码' }] },{ xtype:'panel', layout:'form', width:450, height:500, frame:true, items:[{ id : 'upload', name : 'upload', inputType : "file", fieldLabel : '上传图片', xtype : 'textfield', anchor : '40%' }, { xtype : 'box', id : 'browseImage', fieldLabel : "预览图片", autoEl : { width : 300, height : 350, tag : 'img', // type : 'image', src : Ext.BLANK_IMAGE_URL, style : 'filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale);', complete : 'off', id : 'imageBrowse' } }] }], listeners : { 'render' : function(f) { // this.form.findField('upload').on('render', function() { //通過change事件 Ext.get('upload').on('change', function(field, newValue, oldValue) { var url = getPath(Ext.get('upload').dom); // alert("url = " + url); if (img_reg.test(url)) { if (Ext.isIE) { var image = Ext.get('imageBrowse').dom; image.src = Ext.BLANK_IMAGE_URL;// 覆盖原来的图片 image.filters .item("DXImageTransform.Microsoft.AlphaImageLoader").src = url; }// 支持FF else { Ext.get('imageBrowse').dom.src = Ext .get('upload').dom.files .item(0).getAsDataURL() } } }, this); }, this); } } , buttons : [{ text : "提交", name : "submit", handler : submit }] }); var img_reg = /\.([jJ][pP][gG]){1}$|\.([jJ][pP][eE][gG]){1}$|\.([gG][iI][fF]){1}$|\.([pP][nN][gG]){1}$|\.([bB][mM][pP]){1}$/ }); function submit() { Ext.getCmp("fileUploadForm").getForm().submit({ url : "uploadAction.action", method : "POST", success : function(form, action) { alert("success"); }, failure : function(form, action) { alert("failure"); } }); } function getPath(obj) { if(obj) { if (window.navigator.userAgent.indexOf("MSIE")>=1) { obj.select(); return document.selection.createRange().text; } else if(window.navigator.userAgent.indexOf("Firefox")>=1) { if(obj.files) { return obj.files.item(0).getAsDataURL(); } return obj.value; } return obj.value; } }
upload.action
package com.medvision; 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 javax.annotation.Resource; import org.apache.struts2.ServletActionContext; import org.springframework.context.annotation.Scope; import org.springframework.stereotype.Component; import com.opensymphony.xwork2.ActionSupport; @Component("upload") @Scope("prototype") public class UploadAction extends ActionSupport { /** * */ private UploadAction(){ System.out.println("I was created !"); } private static final long serialVersionUID = 1L; private File upload; private String uploadContentType; private String uploadFileName; // fileName 前面必須和uplaod一致,不然找不到文件 private String comon; private String deptName ; private String deptCode ; public String getDeptName() { return deptName; } public void setDeptName(String deptName) { this.deptName = deptName; } public String getDeptCode() { return deptCode; } public void setDeptCode(String deptCode) { this.deptCode = deptCode; } public String getComon() { return comon; } public void setComon(String comon) { this.comon = comon; } @Resource private test t ; 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; } // 上传文件的文件名 private String getFileExp(String name) { int pos = name.lastIndexOf("."); return name.substring(pos); } private static final int BUFFER_SIZE = 16 * 1024; public String execute() throws Exception { System.out.println("excute was called "); try{ t.sayHello(); }catch(Exception e){ e.printStackTrace(); } Date d = new Date(); System.out.println(this.getComon()+"deptName:"+this.getDeptCode()+"deptCode:"+this.getDeptCode()); System.out.println("uploadFileName = " + this.uploadFileName); // upload -- wapps 下面的文件夹,用来存放图片 String toSrc = ServletActionContext.getServletContext().getRealPath( "upload") + "/" + d.getTime() + getFileExp(this.uploadFileName); // 使用時間戳作為文件名 System.out.println("toFile= " + toSrc); File toFile = new File(toSrc); writeFile(this.upload, toFile); return SUCCESS; } private static void writeFile(File src, File dst) { System.out.println(" == 文件寫入 == "); try { InputStream in = null; OutputStream out = null; try { in = new BufferedInputStream(new FileInputStream(src), BUFFER_SIZE); out = new BufferedOutputStream(new FileOutputStream(dst), BUFFER_SIZE); byte[] buffer = new byte[BUFFER_SIZE]; while (in.read(buffer) > 0) { out.write(buffer); } } finally { if (null != in) { in.close(); } if (null != out) { out.close(); } } } catch (Exception e) { e.printStackTrace(); } } }
struts.xml
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd"> <struts> <include file="struts-default.xml" /> <constant name="struts.objectFactory.spring.autoWire" value="type" /> <constant name="struts.multipart.saveDir" value="/tmp"></constant> <package name="default" namespace="/" extends="json-default"> <interceptors> <interceptor name="uploadInter" class="uploadInterceptor"></interceptor> </interceptors> <action name="uploadAction" class="upload"> <interceptor-ref name="fileUploadStack"> <!--拦截器strut2自带的, 指定上传文件的格式,如果不符合规定，将会自动拦截下来 --> <!-- <param name="allowedTypes">image/bmp,image/png,image/gif,image/jpeg,image/jpg</param> --> <param name="maximumSize">20000000000</param> </interceptor-ref> <interceptor-ref name="uploadInter" /> <result name="success"></result> </action> <action name="getupload" class="index"> <result name="success"> /index.jsp </result> </action> </package> </struts>
就这样了。学习愉快。
