Question

你好，我正在制作员工目录。我想上传员工的照片，当我尝试存储图片时，我收到错误，如 Portlet暂时不可用如果我删除图像上传的逻辑然后我在数据库中的其他数据存储成功。请帮我如何在数据库中存储图像路径。我在 / webapps 中创建了图片文件夹。我想将我的所有图像存储在此文件夹中，并将我的图像路径存储到数据库中。请告诉我如何存储图像路径，并在存储图像路径后如何在其他页面中显示图像。

我在这里给你我的java代码，我写了我的逻辑。 package com.dir;

import java.io.File;
import java.io.IOException;
import java.util.Date;
import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.portlet.PortletException;
import com.liferay.portal.kernel.exception.SystemException;
import com.dir.model.directory;
import com.dir.model.impl.directoryImpl;
import com.dir.service.directoryLocalServiceUtil;
import com.liferay.counter.service.CounterLocalServiceUtil;
import com.liferay.portal.kernel.upload.UploadPortletRequest;
import com.liferay.portal.kernel.util.FileUtil;
import com.liferay.portal.kernel.util.ParamUtil;
import com.liferay.portal.util.PortalUtil;
import com.liferay.util.bridges.mvc.MVCPortlet;


  public class Directory extends MVCPortlet {

public void updatedir(ActionRequest actionRequest,ActionResponse  
 actionResponse)throws IOException, PortletException
        {
String empname =ParamUtil.getString(actionRequest,"empname");
    String designation =ParamUtil.getString(actionRequest,"designation");
String qualification =ParamUtil.getString(actionRequest,"qualification");
    String email =ParamUtil.getString(actionRequest,"email");
String photo=ParamUtil.getString(actionRequest,"photo");
String company =ParamUtil.getString(actionRequest,"company");
int experiance=ParamUtil.getInteger(actionRequest,"experiance");

directory d1 = new directoryImpl();

// set primary key
long directoryId=0L;
try
{

     directoryId=CounterLocalServiceUtil.increment(this.getClass().getName());
} 
catch (SystemException ex)
{
    ex.printStackTrace();
}
   d1.setDirectoryId(directoryId);

        // set UI fields
        d1.setEmpname(empname);
        d1.setDesignation(designation);
        d1.setQualification(qualification);
        d1.setEmail(email);
        d1.setPhoto(photo);
        d1.setCompany(company);
        d1.setExperiance(experiance);

    File file;

        UploadPortletRequestupreq=PortalUtil.getUploadPortletRequest(actionRequest);
    file=upreq.getFile(photo);

    Stringpath=actionRequest.getPortletSession().getPortletContext().getRealPath(photo) 
     + "//" + ("/images");

        File fileone= new File(path);
        FileUtil.copyDirectory(file,fileone);

        // set audit field(s)
        d1.setDateAdded(new Date());

        // insert the book using persistence api
        try {

        directoryLocalServiceUtil.adddirectory(d1);
        } catch (SystemException e) {
        e.printStackTrace();
        }


        }


      }

在这里，我从我上传照片的地方给你我的Jsp文件。

   <aui:form name="fm" method="POST" action="<%= updatedirURL.toString() %>"   
    enctype="multipart/form-data">

  <aui:input name="empname" label="Name"/>

 <aui:input name="designation" label="Designation"/>
 <aui:input name="qualification" label="Qualification"/>

 <aui:input name="email" label="Email"/>

 <aui:input type="file" label="Photo" name="photo"/>

 <aui:input name="company" label="Company"/>

 <aui:input name="experiance" label="Experiance"/>

 <aui:button type="submit" value="Save"/>
 </aui:form>

请帮助我，我错了，哪些东西缺少必要的东西。并告诉我如何显示该文件夹中的数据。

Answer 1

查看此tuorial关于使用mysql读取/写入的文件（文件可能是任何类型），Tt会对你有所帮助..
欢呼...

如何在数据库中存储图像路径？

1 个答案: