📄 addservlet.java
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package myservlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import myBean.*;
import java.sql.*;
public class addServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.setCharacterEncoding("gb2312");
response.setCharacterEncoding("gb2312");
response.setContentType("text/html");
PrintWriter out = response.getWriter();
String bookId=request.getParameter("bookId");
String typeName=request.getParameter("typeName");
String name=request.getParameter("name");
String writer=request.getParameter("writer");
String publisher=request.getParameter("publisher");
String day=request.getParameter("day");
String price=request.getParameter("price");
String onsale=request.getParameter("onsale");
String newprice=request.getParameter("newprice");
String description=request.getParameter("description");
//下面三步将界面的值传入到Bean中
Book lbean=new Book();
lbean.setBookId(bookId);
lbean.setTypeName(typeName);
lbean.setName(name);
lbean.setWriter(writer);
lbean.setPublisher(publisher);
float dayF=Float.parseFloat(day);
float priceF=Float.parseFloat(price);
float onsaleF=Float.parseFloat(onsale);
float newpriceF=Float.parseFloat(newprice);
lbean.setDay(dayF);
lbean.setPrice(priceF);
lbean.setOnsale(onsaleF);
lbean.setNewPrice(newpriceF);
lbean.setDescription(description);
try{
//下面的这个步为连接数据库
DBConnection myDB=new DBConnection();
Connection conn=myDB.getConnection();
//下面为写入数据库
BookBean add=new BookBean();
add.addBook(lbean);
out.println("<%@ page contentType=\"text/html; charset=gb2312\" language=\"java\" import=\"java.sql.*\" %>");
out.println("<% request.setCharacterEncoding(\"gb2312\");%>");
out.println("<html >");
out.println("<meta http-equiv=\"Content-Type\" content=\"text/html; charset=gb2312\" />");
out.println("<meta http-equiv='Refresh' content='3;URL=/new/index.html'>");
out.println("<head><title>添加图书</title></head>");
out.println("<body>");
out.println("<p>添加成功,3秒钟自动返回</p>");
out.println("<a HREF=\"/new/index.html\">返回</a>");
out.println("</body></html>");
}catch(Exception e){
e.printStackTrace();
}
}
public void destroy() {
super.destroy();
}
}⌨️ 快捷键说明
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