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ASP.NET程序代码优化的七个方面
ASP.NET程序性能优化的七个方面 一、数据库操作1、用完马上关闭数据库连接 访问数据库资源需要创建连接、打开连接和关闭连接几个操作。这些过程需要多次与数据库交换信息以通过身份验证,比较耗费服务器资源。ASP.NET中提供了连接池(Connection Pool)改善打开和关闭数据库对性能的影.....
分类:Web程序   时间:2014-07-24 22:15:42    阅读次数:391
Android java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
E/AndroidRuntime(7200): Uncaught handler: thread Thread-8 exiting due to uncaught exceptionE/AndroidRuntime( 7200): java.lang.RuntimeException: Can't ...
分类:移动开发   时间:2014-07-24 22:12:02    阅读次数:286
BNUOJ-22868-Movie collection(树状数组)
DescriptionMr. K. I. has a very big movie collection. He has organized his collection in a big stack. Whenever he wants to watch one of the movies, he...
分类:其他好文   时间:2014-07-24 21:58:12    阅读次数:394
response.setHeader
1. HTTP消息头(1)通用信息头即能用于请求消息中,也能用于响应信息中,但与被传输的实体内容没有关系的信息头,如Data,Pragma主要: Cache-Control , Connection , Data , Pragma , Trailer , Transfer-Encoding , Up...
分类:其他好文   时间:2014-07-24 21:45:02    阅读次数:291
java中简单的db封装
packagecom.melin.bbs; importjava.sql.Connection; importjava.sql.DriverManager; importjava.sql.ResultSet; importjava.sql.SQLException; importjava.sql.Statement;publicclassDB{//建立连接 publicstaticConnectiongetConn(){ Connectionconn=null; try{ Cla..
分类:数据库   时间:2014-07-24 17:55:37    阅读次数:294
mysql中load data Infile运用
速度比insert要快20倍。共享一下java程序操作。package com.mysql.csv; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.SQLException; public class Competitio...
分类:数据库   时间:2014-07-24 17:39:26    阅读次数:257
POJ3259——Wormholes(Bellman-Ford+SPFA)
WormholesDescriptionWhile exploring his many farms, Farmer John has discovered a number of amazing wormholes. A wormhole is very peculiar because it i...
分类:其他好文   时间:2014-07-24 17:27:45    阅读次数:284
转:RunLoop简单了解
A run loop for a given thread will wait until one or more of its input sources has some data or event, then fire the appropriate input handler(s) to p...
分类:其他好文   时间:2014-07-24 17:15:40    阅读次数:301
POJ3260——The Fewest Coins(多重背包+完全背包)
The Fewest CoinsDescriptionFarmer John has gone to town to buy some farm supplies. Being a very efficient man, he always pays for his goods in such a ...
分类:其他好文   时间:2014-07-24 17:11:36    阅读次数:326
poj3261
Milk PatternsTime Limit:5000MSMemory Limit:65536KTotal Submissions:9983Accepted:4495Case Time Limit:2000MSDescriptionFarmer John has noticed that the ...
分类:其他好文   时间:2014-07-24 16:56:58    阅读次数:217
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