成都大学心理健康测试系统 (部分源代码)
作者：互联网
一、连接数据库:
package com.scujcc;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.sql.DataSource;
import com.scujcc.Quiz;
public class DB {
private Connection conn;
public void connect()
{
Context ctx;
try
{
ctx=new InitialContext();
DataSource ds=(DataSource) ctx.lookup("java:comp/env/mypool");
conn=ds.getConnection();
System.out.println("成功获取连接"+conn);
}
catch(NamingException e)
{
e.printStackTrace();
}
catch(SQLException e)
{
e.printStackTrace();
}
}
/**
* 此方法可向数据库中添加一个心理测试题目
* @param quiz 即将添加的测试题目
* @return 若添加成功则返回true，否则返回false
*/
public int add1(Quiz quiz)
{
int result=-1;
connect();
try
{
PreparedStatement ps=conn.prepareStatement("update csone set c_content=?,c_answer=? where id=1");
ps.setString(1, quiz.getTitle());
ps.setString(2, quiz.getContent());
int count=ps.executeUpdate();
if(count>0)
{
ResultSet generatedKeys = ps.getGeneratedKeys();
if (generatedKeys.next()) {
result = generatedKeys.getInt(1);
}
}
}
catch(SQLException e)
{
e.printStackTrace();
}
finally
{
try
{
if(null!=conn)
{
conn.close();
}
}
catch(SQLException e)
{
e.printStackTrace();
}
}
return result;
}
public int add2(Quiz quiz)
{
int result=-1;
connect();
try
{
PreparedStatement ps=conn.prepareStatement("update csone set c_content=?,c_answer=? where id=2");
ps.setString(1, quiz.getTitle());
ps.setString(2, quiz.getContent());
int count=ps.executeUpdate();
if(count>0)
{
ResultSet generatedKeys = ps.getGeneratedKeys();
if (generatedKeys.next()) {
result = generatedKeys.getInt(1);
}
}
}
catch(SQLException e)
{
e.printStackTrace();
}
finally
{
try
{
if(null!=conn)
{
conn.close();
}
}
catch(SQLException e)
{
e.printStackTrace();
}
}
return result;
}
public int add3(Quiz quiz)
{
int result=-1;
connect();
try
{
PreparedStatement ps=conn.prepareStatement("update csone set c_content=?,c_answer=? where id=3");
ps.setString(1, quiz.getTitle());
ps.setString(2, quiz.getContent());
int count=ps.executeUpdate();
if(count>0)
{
ResultSet generatedKeys = ps.getGeneratedKeys();
if (generatedKeys.next()) {
result = generatedKeys.getInt(1);
}
}
}
catch(SQLException e)
{
e.printStackTrace();
}
finally
{
try
{
if(null!=conn)
{
conn.close();
}
}
catch(SQLException e)
{
e.printStackTrace();
}
}
return result;
}
public int add4(Quiz quiz)
{
int result=-1;
connect();
try
{
PreparedStatement ps=conn.prepareStatement("update csone set c_content=?,c_answer=? where id=4");
ps.setString(1, quiz.getTitle());
ps.setString(2, quiz.getContent());
int count=ps.executeUpdate();
if(count>0)
{
ResultSet generatedKeys = ps.getGeneratedKeys();
if (generatedKeys.next()) {
result = generatedKeys.getInt(1);
}
}
}
catch(SQLException e)
{
e.printStackTrace();
}
finally
{
try
{
if(null!=conn)
{
conn.close();
}
}
catch(SQLException e)
{
e.printStackTrace();
}
}
return result;
}
}
package com.scujcc;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.sql.DataSource;
import com.scujcc.Quiz;
public class DB2 {
private Connection conn;
public void connect()
{
Context ctx;
try
{
ctx=new InitialContext();
DataSource ds=(DataSource) ctx.lookup("java:comp/env/mypool");
conn=ds.getConnection();
System.out.println("成功获取连接"+conn);
}
catch(NamingException e)
{
e.printStackTrace();
}
catch(SQLException e)
{
e.printStackTrace();
}
}
/**
* 此方法可向数据库中添加一个心理测试题目
* @param quiz 即将添加的测试题目
* @return 若添加成功则返回true，否则返回false
*/
public int add1(Quiz quiz)
{
int result=-1;
connect();
try
{
PreparedStatement ps=conn.prepareStatement("update ceshitwo set c_content=?,c_answer=? where id=1");
ps.setString(1, quiz.getTitle());
ps.setString(2, quiz.getContent());
int count=ps.executeUpdate();
if(count>0)
{
ResultSet generatedKeys = ps.getGeneratedKeys();
if (generatedKeys.next()) {
result = generatedKeys.getInt(1);
}
}
}
catch(SQLException e)
{
e.printStackTrace();
}
finally
{
try
{
if(null!=conn)
{
conn.close();
}
}
catch(SQLException e)
{
e.printStackTrace();
}
}
return result;
}
public int add2(Quiz quiz)
{
int result=-1;
connect();
try
{
PreparedStatement ps=conn.prepareStatement("update ceshitwo set c_content=?,c_answer=? where id=2");
ps.setString(1, quiz.getTitle());
ps.setString(2, quiz.getContent());
int count=ps.executeUpdate();
if(count>0)
{
ResultSet generatedKeys = ps.getGeneratedKeys();
if (generatedKeys.next()) {
result = generatedKeys.getInt(1);
}
}
}
catch(SQLException e)
{
e.printStackTrace();
}
finally
{
try
{
if(null!=conn)
{
conn.close();
}
}
catch(SQLException e)
{
e.printStackTrace();
}
}
return result;
}
public int add3(Quiz quiz)
{
int result=-1;
connect();
try
{
PreparedStatement ps=conn.prepareStatement("update ceshitwo set c_content=?,c_answer=? where id=3");
ps.setString(1, quiz.getTitle());
ps.setString(2, quiz.getContent());
int count=ps.executeUpdate();
if(count>0)
{
ResultSet generatedKeys = ps.getGeneratedKeys();
if (generatedKeys.next()) {
result = generatedKeys.getInt(1);
}
}
}
catch(SQLException e)
{
e.printStackTrace();
}
finally
{
try
{
if(null!=conn)
{
conn.close();
}
}
catch(SQLException e)
{
e.printStackTrace();
}
}
return result;
}
public int add4(Quiz quiz)
{
int result=-1;
connect();
try
{
PreparedStatement ps=conn.prepareStatement("update ceshitwo set c_content=?,c_answer=? where id=4");
ps.setString(1, quiz.getTitle());
ps.setString(2, quiz.getContent());
int count=ps.executeUpdate();
if(count>0)
{
ResultSet generatedKeys = ps.getGeneratedKeys();
if (generatedKeys.next()) {
result = generatedKeys.getInt(1);
}
}
}
catch(SQLException e)
{
e.printStackTrace();
}
finally
{
try
{
if(null!=conn)
{
conn.close();
}
}
catch(SQLException e)
{
e.printStackTrace();
}
}
return result;
}
}
二、servlet:
package com.scujcc;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class QuizServlet
*/
@WebServlet("/admin/quiz")
public class QuizServlet extends HttpServlet {
private static final long serialVersionUID = 54115222L;
/**
* @see HttpServlet#HttpServlet()
*/
public QuizServlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
response.getWriter().append("Served at: ").append(request.getContextPath());
DB d=new DB();
d.connect();
response.getWriter().append("数据库连接池测试");
}
}
三、
心理测试后台
package com.scujcc;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.rui.Choice;
/**
* Servlet implementation class Ttest1
*/
@WebServlet("/admin/ttest1")
public class Ttest1 extends HttpServlet {
private static final long serialVersionUID = 15424529677L;
List choices=new ArrayList();
private void data2()
{
Connection conn=null;
ResultSet rs=null;
try
{
//1连接mysql
Class.forName("com.mysql.jdbc.Driver");
String url="jdbc:mysql://127.0.0.1:3306/jsp?serverTimezone=GMT";
conn=DriverManager.getConnection(url, "root", "123456");
//2执行sql
String sql="select * from csone";
PreparedStatement ps=conn.prepareStatement(sql);
rs=ps.executeQuery();
//3读取结果
while(rs.next())
{
Choice c= new Choice();
c.setId(rs.getInt("id"));
c.setContent(rs.getString("c_content"));
c.setAnswer(rs.getString("c_answer"));
choices.add(c);
}
}
catch(ClassNotFoundException e)
{
System.out.println("找不到mysql驱动程序com.jdbc.Driver");
}
catch(SQLException e)
{
e.printStackTrace();
}
finally
{
try
{
if(rs!=null)
{
rs.close();
}
if(conn!=null)
{
conn.close();
}
}
catch(SQLException e)
{
System.out.print("关闭连接时出错了！");
}
}
}
/**
* @see HttpServlet#HttpServlet()
*/
public Ttest1() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
response.setCharacterEncoding("GB18030");
response.getWriter().append("Served at: ").append(request.getContextPath());
data2();
request.setAttribute("choices", choices);
getServletContext()
.getRequestDispatcher("/shanchu1.jsp")
.forward(request, response);
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
String choice=request.getParameter("choice");
int choicei=0;
if(null != choice)
{
choicei=Integer.parseInt(choice);
}
//根据choicei的值（可能为1,2,3,4。来输出其对应的答案）
Choice userChoice=null;
for(Object c: choices)
{
Choice cc=(Choice) c;
if(cc.getId()==choicei)
{
userChoice=cc;
break;
}
}
String msg= "";
int[] result = {0,0,0,0};
int y=userChoice.getId();
Delete1 d=new Delete1();
if(y==1)
{
result[0]=d.add1();
}
else if(y==2)
{
result[1]=d.add2();
}
else if(y==3)
{
result[2]=d.add3();
}
else if(y==4)
{
result[3]=d.add4();
}
// if(result[m]>0)
// {
// msg[m] = "成功添加测试题：" + quiz.getTitle()+"id为："+result;
// }
PrintWriter out=response.getWriter();
out.append(msg);
request.setAttribute("msg", msg);
getServletContext().getAttribute("userCounter");
getServletContext().getRequestDispatcher("/admin/ttest1").forward(request, response);
}
}
private static final long serialVersionUID = 154529677L;
List choices=new ArrayList();
private void data2()
{
Connection conn=null;
ResultSet rs=null;
try
{
//1连接mysql
Class.forName("com.mysql.jdbc.Driver");
String url="jdbc:mysql://127.0.0.1:3306/jsp?serverTimezone=GMT";
conn=DriverManager.getConnection(url, "root", "123456");
//2执行sql
String sql="select * from ceshitwo";
PreparedStatement ps=conn.prepareStatement(sql);
rs=ps.executeQuery();
//3读取结果
while(rs.next())
{
Choice c= new Choice();
c.setId(rs.getInt("id"));
c.setContent(rs.getString("c_content"));
c.setAnswer(rs.getString("c_answer"));
choices.add(c);
}
}
catch(ClassNotFoundException e)
{
System.out.println("找不到mysql驱动程序com.jdbc.Driver");
}
catch(SQLException e)
{
e.printStackTrace();
}
finally
{
try
{
if(rs!=null)
{
rs.close();
}
if(conn!=null)
{
conn.close();
}
}
catch(SQLException e)
{
System.out.print("关闭连接时出错了！");
}
}
}
/**
* @see HttpServlet#HttpServlet()
*/
public Ttest2() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
response.setCharacterEncoding("GB18030");
response.getWriter().append("Served at: ").append(request.getContextPath());
data2();
request.setAttribute("choices", choices);
getServletContext()
.getRequestDispatcher("/shanchu2.jsp")
.forward(request, response);
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
String choice=request.getParameter("choice");
int choicei=0;
if(null != choice)
{
choicei=Integer.parseInt(choice);
}
//根据choicei的值（可能为1,2,3,4。来输出其对应的答案）
Choice userChoice=null;
for(Object c: choices)
{
Choice cc=(Choice) c;
if(cc.getId()==choicei)
{
userChoice=cc;
break;
}
}
String msg= "";
int[] result = {0,0,0,0};
int y=userChoice.getId();
Delete2 d=new Delete2();
if(y==1)
{
result[0]=d.add1();
}
else if(y==2)
{
result[1]=d.add2();
}
else if(y==3)
{
result[2]=d.add3();
}
else if(y==4)
{
result[3]=d.add4();
}
// if(result[m]>0)
// {
// msg[m] = "成功添加测试题：" + quiz.getTitle()+"id为："+result;
// }
PrintWriter out=response.getWriter();
out.append(msg);
request.setAttribute("msg", msg);
getServletContext().getAttribute("userCounter");
getServletContext().getRequestDispatcher("/admin/ttest2").forward(request, response);
}
}
四、主页后台
package com.scujcc;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class Fhxszhuye2
*/
@WebServlet("/admin/fhxszhuye2")
public class Fhxszhuye2 extends HttpServlet {
private static final long serialVersionUID = 767868767L;
/**
* @see HttpServlet#HttpServlet()
*/
public Fhxszhuye2() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
response.getWriter().append("Served at: ").append(request.getContextPath());
getServletContext()
.getRequestDispatcher("/WEB-INF/xszhuye2.jsp")
.forward(request, response);
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
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标签：ps,心理健康,request,result,测试,import,源代码,response,conn 来源： https://www.cnblogs.com/Alei777/p/10946862.html