filehandle.java

Java开发的权限管理的例子

package org.artemis.manager.file;

import java.util.Map;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.jsp.PageContext;

/**
 * @author Administrator
 * 
 * TODO
 */
public class FileHandle implements FILE {

    private String contextPath = null;

    private FileParam fileParam = null;
    
    private String buildFilePath = null;
    
    private Map map = null;
    

    public void initialize(PageContext pageContext) {
        // TODO 自动生成方法存根
        contextPath = pageContext.getServletContext().getRealPath("/");
        System.out.println("initialize contextPath = " + contextPath);
    }


    public void initialize(ServletContext servletContext) {
        contextPath = servletContext.getRealPath("/");
        System.out.println("initialize contextPath = " + contextPath);
    }


    public void setFileParam(FileParam fileParam) {
        // TODO 自动生成方法存根
        this.fileParam = fileParam;
    }

    public int service(HttpServletRequest request) {
        Upload upload = new UploadService();
        //上传的路径
        upload.setContextPath(contextPath);
        upload.setFileParam(fileParam);
        try {
            int level = upload.readWriteFile(request);
            this.buildFilePath = upload.getBuildFilePath();
            if(level==-1){
                setInputMap(upload.getInputMap());	    
            }
            System.out.println("上传文件结果为 : " + level);
            return level;
        } catch (Exception ex) {
        	ex.printStackTrace();
            //System.err.println("上传文件出错 : " + ex.getMessage());
            //logger.info("上传链接图片发生错误 " + ex.getMessage());
        }
        return 0;
    }

    /*
     * （非 Javadoc）
     * 返回生成文件的路径
     * @see com.ntsky.file.FILE#getBuildFilePath()
     */
    public String getBuildFilePath() {
        // TODO 自动生成方法存根
        return buildFilePath;
    }

    public void setInputMap(Map map){
        this.map = map;
    }
    /**
     * 返回结果集
     */
    public String getContent(String key) {
    	String tempStr=null;
    	if(map!=null)
          tempStr = (String)map.get(key);
        if(tempStr == null){
            tempStr = "请检查input的名字是否正确!";
        }
        return tempStr;
    }
}