JSP SERVLET JDBC实现对数据库的增删改查课案Word文档格式.docx

JSP SERVLET JDBC实现对数据库的增删改查课案Word文档格式.docx

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packagebean;

publicclassPage{

privateinttotalPage;

privateintcurrentPage;

privateinttotalRecord;

privateintcurrentRecord;

privateintpageSize=8;

//获得和设置当前页

publicintgetCurrentPage（）{

returncurrentPage;

}

publicvoidsetCurrentPage（intcurrentRecord,intpageSize）{

if（currentRecord%pageSize==0）{

currentPage=currentRecord/pageSize;

}

else{

currentPage=currentRecord/pageSize+1;

//获得和设置当前记录

publicintgetCurrentRecord（）{

returncurrentRecord;

publicvoidsetCurrentRecord（intcurrentRecord）{

this.currentRecord=currentRecord;

//获得和设置每页记录数量

publicintgetPageSize（）{

returnpageSize;

publicvoidsetPageSize（intpageSize）{

this.pageSize=pageSize;

//获得和设置总页数

publicintgetTotalPage（）{

returntotalPage;

publicvoidsetTotalPage（inttotalRecord,intpageSize）{

if（totalRecord%pageSize==0）{

totalPage=totalRecord/pageSize;

totalPage=totalRecord/pageSize+1;

//获得和设置总记录

publicintgetTotalRecord（）{

returntotalRecord;

publicvoidsetTotalRecord（inttotalRecord）{

this.totalRecord=totalRecord;

}

8,用相同的方法建一个StudentInfo类

完整的StudentInfo.java代码如下

publicclassStudentInfo{

privateintid;

//学号

privateStringname;

//姓名

privateintage;

//年龄

privateStringgender;

//性别

privateStringmajor;

//专业

publicStudentInfo（）{

publicStudentInfo（intid,Stringname,intage,Stringgender,Stringmajor）{

this.id=id;

this.name=name;

this.age=age;

this.gender=gender;

this.major=major;

publicintgetId（）{

returnid;

publicvoidsetId（intid）{

publicStringgetName（）{

returnname;

publicvoidsetName（Stringname）{

publicintgetAge（）{

returnage;

publicvoidsetAge（intage）{

publicStringgetGender（）{

returngender;

publicvoidsetGender（Stringgender）{

publicStringgetMajor（）{

returnmajor;

publicvoidsetMajor（Stringmajor）{

9，在src目录下添加另一个包dbservlet在该包中建立一个AllServlet类

完整的AllServlet.java代码如下

packagedbservlet;

importjava.io.IOException;

importjava.sql.Connection;

importjava.sql.DriverManager;

importjava.sql.ResultSet;

importjava.sql.SQLException;

importjava.sql.Statement;

importjava.util.ArrayList;

importjava.util.List;

importjavax.servlet.ServletException;

importjavax.servlet.http.HttpServlet;

importjavax.servlet.http.HttpServletRequest;

importjavax.servlet.http.HttpServletResponse;

importbean.Page;

importbean.StudentInfo;

publicclassAllServletextendsHttpServlet{

/**

*

*/

privatestaticfinallongserialVersionUID=1L;

//doPost方法

publicvoiddoPost（HttpServletRequestrequest,HttpServletResponseresponse）

throwsServletException,IOException{

request.setCharacterEncoding（"

UTF-8"

）;

response.setCharacterEncoding（"

StringmethodName=request.getParameter（"

methodName"

intmethod=Integer.parseInt（methodName）;

try{

switch（method）

{

case0:

insert（request,response）;

case1:

difpage（request,response）;

break;

case2:

delete（request,response）;

break;

case3:

update（request,response）;

break;

case4:

update1（request,response）;

case5:

dispatch（request,response）;

}catch（ClassNotFoundExceptione）{

//TODOAuto-generatedcatchblock

e.printStackTrace（）;

}catch（SQLExceptione）{

}

//doGet方法

publicvoiddoGet（HttpServletRequestrequest,HttpServletResponseresponse）

throwsServletException,IOException{

doPost（request,response）;

//数据库连接方法

publicConnectionconnect（）throwsClassNotFoundException,SQLException{

Connectionconn=null;

Class.forName（"

oracle.jdbc.driver.OracleDriver"

Stringurl="

jdbc:

oracle:

thin:

@localhost:

1521:

orcl"

;

Stringuser="

scott"

Stringpassword="

tiger"

conn=DriverManager.getConnection（url,user,password）;

returnconn;

//关闭数据库资源

publicvoidclose（Statementstat,Connectionconn）throwsSQLException{

if（stat!

=null）{

stat.close（）;

if（conn!

conn.close（）;

//插入方法

publicvoidinsert（HttpServletRequestrequest,HttpServletResponseresponse）throwsClassNotFou