网上书店STRUTS+SQLSERVER+JSP

package BookStore; import java.util.*; import java.sql.Connection; import java.sql.ResultSet; public class Book { private int id = 0; private int catId = 0; private String name = null; private float price = 0; private float salePrice = 0; private String descript = null; private String author = null; private String contents = null; private String image = null; public Book(){} public void setId(int id) { this.id = id; } public int getId() { return id; } public void setCatId(int catId) { this.catId = catId; } public int getCatId() { return catId; } public void setName(String name) { this.name = name; } public String getName() { return name; } public void setPrice(float price) { this.price = price; } public float getPrice() { return price; } public void setSalePrice(float salePrice) { this.salePrice = salePrice; } public float getSalePrice() { return salePrice; } public void setDescript(String descript) { this.descript = descript; } public String getDescript() { return descript; } public void setAuthor(String author) { this.author = author; } public String getAuthor() { return author; } public void setContents(String contents) { this.contents = contents; } public String getContents() { return contents; } public void setImage(String image) { this.image = image; } public String getImage() { return image; } public static Vector SearchBook(DB db,int mode,int bookCat,String field,String keyword) throws Exception{ Vector bookList = new Vector(); ResultSet rs; String strSql=null; String sField=null; if (mode==1 ) { strSql = "select * from book where catid=" + bookCat; } else{ if (field.equals("1")) sField="name"; else if(field.equals("2")) sField="author"; strSql = "select * from book where " + sField +" like '%" + keyword +"%' order by id"; } /* if (bookCat==0 ) { strSql = "select * from book where 1=1 "; } else{ strSql = "select * from book where catid=" + bookCat; } if (keyword==null||keyword==""){ strSql = strSql + " order by id"; } else{ if (field.equals("1")) sField="name"; else if(field.equals("2")) sField="author"; strSql = strSql + " and " + sField +" like '%" + keyword +"%' order by id"; } */ rs = db.OpenSql(strSql); while (rs.next()){ Book book = new Book(); book.setId(rs.getInt("id")) ; book.setName(rs.getString("name")) ; book.setAuthor(rs.getString("author")) ; book.setPrice(rs.getInt("price")) ; book.setSalePrice(rs.getInt("saleprice")) ; bookList.add(book); } System.out.println("bookList: "+bookList.size()); return bookList; } public static Book GetDetail(DB db,int bookId) throws Exception{ ResultSet rs; String strSql=null; String rplContent=null; strSql = "select * from book where id=" + bookId; rs = db.OpenSql(strSql); Book book = new Book(); if (rs.next()){ book.setId(rs.getInt("id")) ; book.setName(rs.getString("name")) ; book.setAuthor(rs.getString("author")) ; book.setPrice(rs.getInt("price")) ; book.setSalePrice(rs.getInt("saleprice")) ; book.setImage(rs.getString("image")) ; rplContent = rs.getString("descript"); rplContent = rplContent.replaceAll("\n","<br>"); book.setDescript(rplContent) ; rplContent = rs.getString("contents"); rplContent = rplContent.replaceAll("\n","<br>"); book.setContents(rplContent) ; } return book; } public static int GetBookCount(DB db,int mode,int bookCat,String field,String keyword) throws Exception{ ResultSet rs; String strSql=null; String sField=null; int iRecordCount=0; if (mode==1 ) { strSql = "select count(*) from book where catid=" + bookCat; } else{ if (field.equals("1")) sField="name"; else if(field.equals("2")) sField="author"; strSql = "select count(*) from book where " + sField +" like '%" + keyword +"%' order by id"; } rs = db.OpenSql(strSql); if ( rs.next()) { iRecordCount=rs.getInt(1); } return iRecordCount; } }