attachment.java

oa 源码

package com.redmoon.oa.flow;

import java.io.*;
import java.sql.*;

import cn.js.fan.db.*;
import cn.js.fan.web.*;
import org.apache.log4j.*;

public class Attachment implements java.io.Serializable {
    int id;
    int docId;
    String name;
    String fullPath;
    String diskName;
    String visualPath;

    String connname;

    String INSERT = "insert into flow_document_attach (doc_id, name, fullpath, diskname, visualpath, orders, page_num, field_name) values (?,?,?,?,?,?,?,?)";
    String LOAD = "SELECT doc_id, name, fullpath, diskname, visualpath, orders, page_num, field_name FROM flow_document_attach WHERE id=?";
    String SAVE = "update flow_document_attach set doc_id=?, name=?, fullpath=?, diskname=?, visualpath=?, orders=?, page_num=?, field_name=? WHERE id=?";
    Logger logger = Logger.getLogger(Attachment.class.getName());

    public Attachment() {
        connname = Global.defaultDB;
        if (connname.equals(""))
            logger.info("Attachment:默认数据库名为空！");
    }

    public Attachment(int id) {
        connname = Global.defaultDB;
        if (connname.equals(""))
            logger.info("Attachment:默认数据库名为空！");
        this.id = id;
        loadFromDb();
    }

    public Attachment(int orders, int docId, int pageNum) {
        connname = Global.defaultDB;
        if (connname.equals(""))
            logger.info("Attachment:默认数据库名为空！");
        this.orders = orders;
        this.docId = docId;
        this.pageNum = pageNum;
        loadFromDbByOrders();
    }

    public boolean del() {
        String sql = "delete from flow_document_attach where id=?";
        Conn conn = new Conn(connname);
        boolean re = false;
        try {
            PreparedStatement pstmt = conn.prepareStatement(sql);
            pstmt.setInt(1, id);
            re = conn.executePreUpdate()==1?true:false;
            pstmt.close();
            
            sql = "update flow_document_attach set orders=orders-1 where doc_id=? and page_num=? and orders>?";
            pstmt = conn.prepareStatement(sql);
            pstmt.setInt(1, docId);
            pstmt.setInt(2, pageNum);
            pstmt.setInt(3, orders);
            conn.executePreUpdate();
        }
        catch (SQLException e) {
            logger.error("del:" + e.getMessage());
            return false;
        }
        finally {
            if (conn!=null) {
                conn.close();
                conn = null;
            }
        }
        
        File fl = new File(this.fullPath);
        fl.delete();
        return re;
    }

    public boolean save() {
        Conn conn = new Conn(connname);
        boolean re = false;
        try {
            PreparedStatement pstmt = conn.prepareStatement(SAVE);
            pstmt.setInt(1, docId);
            pstmt.setString(2, name);
            pstmt.setString(3, fullPath);
            pstmt.setString(4, diskName);
            pstmt.setString(5, visualPath);
            pstmt.setInt(6, orders);
            pstmt.setInt(7, pageNum);
            pstmt.setString(8, fieldName);
            pstmt.setInt(9, id);
            re = conn.executePreUpdate()==1?true:false;
        }
        catch (SQLException e) {
            logger.error(e.getMessage());
        }
        finally {
            if (conn!=null) {
                conn.close(); conn = null;
            }
        }
        return re;
    }

    public int getId() {
        return this.id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public int getDocId() {
        return this.docId;
    }

    public void setDocId(int di) {
        this.docId = di;
    }

    public String getName() {
        return this.name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getDiskName() {
        return this.diskName;
    }

    public void setDiskName(String dn) {
        this.diskName = dn;
    }

    public String getFullPath() {
        return this.fullPath;
    }

    public void setFullPath(String f) {
        this.fullPath = f;
    }

    public String getVisualPath() {
        return this.visualPath;
    }

    public int getOrders() {
        return orders;
    }

    public int getPageNum() {
        return pageNum;
    }

    public boolean isLoaded() {
        return loaded;
    }

    public String getFieldName() {
        return fieldName;
    }

    public void setVisualPath(String vp) {
        this.visualPath = vp;
    }

    public void setOrders(int orders) {
        this.orders = orders;
    }

    public void setPageNum(int pageNum) {
        this.pageNum = pageNum;
    }

    public void setLoaded(boolean loaded) {
        this.loaded = loaded;
    }

    public void setFieldName(String fieldName) {
        this.fieldName = fieldName;
    }

    public boolean create() {
         
         boolean re = false;
         PreparedStatement pstmt = null;
         ResultSet rs = null;
         Conn conn = new Conn(connname);
         try {
             pstmt = conn.prepareStatement(INSERT);
             pstmt.setInt(1, docId);
             pstmt.setString(2, name);
             pstmt.setString(3, fullPath);
             pstmt.setString(4, diskName);
             pstmt.setString(5, visualPath);
             pstmt.setInt(6, orders);
             pstmt.setInt(7, pageNum);
             pstmt.setString(8, fieldName);
             re = conn.executePreUpdate()==1;
         } catch (SQLException e) {
             logger.error("create:" + e.getMessage());
         } finally {
             if (rs != null) {
                 try {
                     rs.close();
                 } catch (Exception e) {}
                 rs = null;
             }
             if (pstmt != null) {
                 try {
                     pstmt.close();
                 } catch (Exception e) {}
                 pstmt = null;
             }
             if (conn != null) {
                 conn.close();
                 conn = null;
             }
         }
         return re;
    }

    public void loadFromDb() {
        Conn conn = new Conn(connname);
        PreparedStatement pstmt = null;
        ResultSet rs = null;
        try {
            pstmt = conn.prepareStatement(LOAD);
            pstmt.setInt(1, id);
            
            rs = conn.executePreQuery();
            if (rs != null && rs.next()) {
                docId = rs.getInt(1);
                name = rs.getString(2);
                
                fullPath = rs.getString(3);
                
                diskName = rs.getString(4);
                visualPath = rs.getString(5);
                orders = rs.getInt(6);
                pageNum = rs.getInt(7);
                fieldName = rs.getString(8);
                loaded = true;
            }
        } catch (SQLException e) {
            logger.error(e.getMessage());
        } finally {
            if (rs != null) {
                try {
                    rs.close();
                } catch (Exception e) {}
                rs = null;
            }
            if (conn != null) {
                conn.close();
                conn = null;
            }
        }
    }

    public void loadFromDbByOrders() {
        Conn conn = new Conn(connname);
        PreparedStatement pstmt = null;
        ResultSet rs = null;
        try {
            String LOADBYORDERS = "SELECT id, name, fullpath, diskname, visualpath, field_name FROM flow_document_attach WHERE orders=? and doc_id=? and page_num=?";
            pstmt = conn.prepareStatement(LOADBYORDERS);
            pstmt.setInt(1, orders);
            pstmt.setInt(2, docId);
            pstmt.setInt(3, pageNum);
            rs = conn.executePreQuery();
            if (rs != null && rs.next()) {
                id = rs.getInt(1);
                name = rs.getString(2);
                fullPath = rs.getString(3);
                diskName = rs.getString(4);
                visualPath = rs.getString(5);
                fieldName = rs.getString(6);
                loaded = true;
            }
        } catch (SQLException e) {
            logger.error(e.getMessage());
        } finally {
            if (rs != null) {
                try {
                    rs.close();
                } catch (Exception e) {}
                rs = null;
            }
            if (conn != null) {
                conn.close();
                conn = null;
            }
        }
    }

    private int orders = 0;
    private int pageNum;
    private boolean loaded = false;

    
    private String fieldName;
}