javaweb寫代碼中注銷如何實(shí)現(xiàn)

點(diǎn)擊注銷，跳轉(zhuǎn)到后臺(tái)，去掉當(dāng)前用戶session，然后跳轉(zhuǎn)登錄界面。

“只有客戶發(fā)展了，才有我們的生存與發(fā)展！”這是創(chuàng)新互聯(lián)的服務(wù)宗旨！把網(wǎng)站當(dāng)作互聯(lián)網(wǎng)產(chǎn)品，產(chǎn)品思維更注重全局思維、需求分析和迭代思維，在網(wǎng)站建設(shè)中就是為了建設(shè)一個(gè)不僅審美在線，而且實(shí)用性極高的網(wǎng)站。創(chuàng)新互聯(lián)對(duì)成都網(wǎng)站設(shè)計(jì)、網(wǎng)站建設(shè)、網(wǎng)站制作、網(wǎng)站開發(fā)、網(wǎng)頁設(shè)計(jì)、網(wǎng)站優(yōu)化、網(wǎng)絡(luò)推廣、探索永無止境。

怎么用java寫銀行管理系統(tǒng)的銷戶功能只要銷戶就可以了

1.開戶2.銷戶3.存錢4.取錢5.查詢技術(shù)點(diǎn):TcpServer服務(wù)端TcpSocket客戶端多線程并發(fā)訪問數(shù)據(jù)庫存儲(chǔ)數(shù)據(jù)XML組織傳輸?shù)臄?shù)據(jù)

java實(shí)現(xiàn)注銷功能

用jsp寫了一個(gè)注銷腳本logout.jsp如下：

%

session.removeValue("UserName");

session.removeValue("UserClass");

session.invalidate();

response.sendRedirect("index.jsp");

%

java 中如何優(yōu)化批量開銷戶

才3000個(gè)開戶 根本不需要多線程，如果你是直接使用JDBC連接數(shù)據(jù)庫，使用JDBC批量入庫,秒秒鐘的事情

,給你個(gè)小例子

package?realnet.jdbc;

import?java.sql.Connection;

import?java.sql.DriverManager;

import?java.sql.PreparedStatement;

import?java.sql.SQLException;

public?class?JdbcInsert4MysqlDemo?{

//?批量操作參數(shù)?rewriteBatchedStatements=true

private?static?String?url?=?"jdbc:mysql://192.168.8.110:3306/demo?rewriteBatchedStatements=true";

private?static?String?user?=?"root";

private?static?String?password?=?"123456";

private?static?String?driver?=?"com.mysql.jdbc.Driver";

/**

*?@param?args

*/

public?static?void?main(String[]?args)?{

JdbcInsert4MysqlDemo?handler?=?new?JdbcInsert4MysqlDemo();

//?handler.testMysqlInsert();

handler.testMysqlBatchInsert();

}

/**

*?testMysqlBatchInsert

*/

public?void?testMysqlBatchInsert()?{

long?startTime?=?System.currentTimeMillis();

Connection?conn?=?null;

PreparedStatement?pstmt?=?null;

String?sql?=?"insert?into?TB_TEST(NAME)values(?)";

int?batchNum?=?1000;

try?{

Class.forName(driver);

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

conn.setAutoCommit(false);

pstmt?=?conn.prepareStatement(sql);

for?(int?i?=?1;?i?=?100000;?i++)?{

pstmt.setString(1,?"test_"?+?i);

pstmt.addBatch();

if?(i?%?batchNum?==?0)?{

pstmt.executeBatch();

conn.commit();

}

}

pstmt.executeBatch();

conn.commit();

System.out.println("mysql?批量插入數(shù)據(jù)：100000?用時(shí)(/ms)："

+?(System.currentTimeMillis()?-?startTime));

}?catch?(Exception?e)?{

e.printStackTrace();

}?finally?{

try?{

if?(null?!=?pstmt)?{

pstmt.close();

}

}?catch?(SQLException?e)?{

e.printStackTrace();

}

try?{

if?(null?!=?conn)?{

conn.close();

}

}?catch?(SQLException?e)?{

e.printStackTrace();

}

}

}

/**

*?testMysqlInsert

*/

public?void?testMysqlInsert()?{

long?startTime?=?System.currentTimeMillis();

Connection?conn?=?null;

PreparedStatement?pstmt?=?null;

String?sql?=?"insert?into?TB_TEST(NAME)values(?)";

try?{

Class.forName(driver);

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

conn.setAutoCommit(false);

pstmt?=?conn.prepareStatement(sql);

for?(int?i?=?1;?i?=?100000;?i++)?{

pstmt.setString(1,?"test_"?+?i);

pstmt.execute();

}

conn.commit();

System.out.println("mysql?普通插入數(shù)據(jù)：100000?用時(shí)(/ms)："

+?(System.currentTimeMillis()?-?startTime));

}?catch?(Exception?e)?{

e.printStackTrace();

}?finally?{

try?{

if?(null?!=?pstmt)?{

pstmt.close();

}

}?catch?(SQLException?e)?{

e.printStackTrace();

}

try?{

if?(null?!=?conn)?{

conn.close();

}

}?catch?(SQLException?e)?{

e.printStackTrace();

}

}

}

}