欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  数据库

MyEclipse6.5连接不上sqlserver2008

程序员文章站 2024-04-04 21:47:23
...

非常感谢,下面是我的BaseDao,貌似没有错的,你看看 package com.scce.dao; import java.io.Serializable; import java.sql.*; import javax.servlet.jsp.jstl.sql.Result; import javax.servlet.jsp.jstl.sql.ResultSupport; public class BaseDAO impleme

非常感谢,下面是我的BaseDao,貌似没有错的,你看看

package com.scce.dao;

import java.io.Serializable;
import java.sql.*;
import javax.servlet.jsp.jstl.sql.Result;
import javax.servlet.jsp.jstl.sql.ResultSupport;

public class BaseDAO implements Serializable {
private static final String DRIVER = "com.microsoft.sqlserver.jdbc.SQLServerDriver";
private static final String URL = "jdbc:sqlserver://localhost:1433;databasename=GameCard_DB";

public static Connection getConnection() {
Connection con = null;
try {
Class.forName(DRIVER);
con = DriverManager.getConnection(URL, "sa", "scce");
} catch (Exception e) {
e.printStackTrace();
}
return con;
}

/**************************************************** 执行SQL语句 *********************************************************/
// 运行有结果集,无参数的sql语句
public static Result runSelectSql(String sql) {
Connection con = null;
PreparedStatement ps = null;
ResultSet res = null;
Result result = null;
try {
con = getConnection();
ps = con.prepareStatement(sql);
res = ps.executeQuery();
result = ResultSupport.toResult(res);
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
res.close();
ps.close();
con.close();
} catch (Exception e) {
e.printStackTrace();
}
}
return result;
}

// 运行有结果集,有参数的sql语句
public static Result runSelectSql(String sql, Object[] params) {
Connection con = null;
PreparedStatement ps = null;
ResultSet res = null;
Result result = null;
try {
con = getConnection();
ps = con.prepareStatement(sql);
for (int i = 0; i ps.setObject(i + 1, params[i]);
}
res = ps.executeQuery();
result = ResultSupport.toResult(res);
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
res.close();
ps.close();
con.close();
} catch (Exception e) {
e.printStackTrace();
}
}
return result;
}

// 运行无结果集,无参数的sql语句
public static boolean runUpdateSql(String sql) {
Connection con = null;
PreparedStatement ps = null;
try {
con = getConnection();
ps = con.prepareStatement(sql);
ps.executeUpdate();
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
} finally {
try {
ps.close();
con.close();
} catch (Exception e) {
e.printStackTrace();
}
}

}

// 运行无结果集,有参数的sql语句
public static boolean runUpdateSql(String sql, Object[] params) {
Connection con = null;
PreparedStatement ps = null;
try {
con = getConnection();
ps = con.prepareStatement(sql);
for (int i = 0; i ps.setObject(i + 1, params[i]);
}
ps.executeUpdate();
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
} finally {
try {
ps.close();
con.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}

/**************************************************** 执行存储过程语句 *********************************************************/
// 无结果集,无参数的存储过程
public static boolean runUpdateByProc(String procName) {
Connection con = null;
CallableStatement cs = null;
try {
con = getConnection();
String proc = String.format("{call %s()}", procName);
cs = con.prepareCall(proc);
return cs.executeUpdate() > 0;
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
cs.close();
con.close();
} catch (Exception e) {
e.printStackTrace();
}
}
return false;
}

// 无结果集,有参数的存储过程
public static boolean runProcUpdate(String procName, Object[] params) {
Connection con = null;
CallableStatement cs = null;
try {
con = getConnection();
String proc = "{call " + procName + "(";
for (int i = 0; i proc += "?,";
}
proc = proc.substring(0, proc.length() - 1) + ")}";
cs = con.prepareCall(proc);
for (int i = 0; i // 说明是输入参数
if (params[i] != null) {
cs.setObject(i + 1, params[i]);
}
// 否则输出参数,就要注册
else {
// 第一个为位置,第二个为类型
cs.registerOutParameter(i + 1, java.sql.Types.VARCHAR);
}
}
cs.executeUpdate();// 只是执行了存储过程,但是还没有把执行赋给输出参数
for (int i = 0; i if (params[i] == null) { // 说明是输出参数
params[i] = cs.getObject(i + 1);
}
}
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
} finally {
try {
cs.close();
con.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}

// 有结果集,无参数的存储过程
public static Result runSelectByProc(String procName) {
Connection con = null;
ResultSet res = null;
Result result = null;
CallableStatement cs = null;
try {
con = getConnection();
String proc = String.format("{call %s}", procName);
cs = con.prepareCall(proc);
res = cs.executeQuery();
result = ResultSupport.toResult(res);
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
res.close();
cs.close();
con.close();
} catch (Exception e) {
e.printStackTrace();
}
}
return result;
}

// 有结果集,有参数的存储过程
public static Result runSelectByProc(String procName, Object[] params) {
Connection con = null;
PreparedStatement ps = null;
ResultSet res = null;
Result result = null;
CallableStatement cs = null;
try {
con = getConnection();
String proc = "{call " + procName + "(";
for (int i = 0; i proc += "?,";
}
proc = proc.substring(0, proc.length() - 1) + ")}";
cs = con.prepareCall(proc);
for (int i = 0; i if (params[i] != null)
{
cs.setObject(i + 1, params[i]);
} else
{

cs.registerOutParameter(i + 1, java.sql.Types.VARCHAR);
}
}
res = cs.executeQuery();
result = ResultSupport.toResult(res);
for (int i = 0; i if (params[i] == null)
{
params[i] = cs.getObject(i + 1);
}
}
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
cs.close();
con.close();
} catch (Exception e) {
e.printStackTrace();
}
}
return result;
}

}