JAVA Á¬½Ó³Ø BoneCP ²âÊÔ£¨2£© with spring 3
¶îÍâJAR°ü£º
org.springframework.expression-3.0.1.RELEASE.jar
org.springframework.asm-3.0.1.RELEASE.jar
org.springframework.beans-3.0.1.RELEASE.jar
p:statementCacheSize="100"
<bean id="masterDataSource" class="com.jolbox.bonecp.BoneCPDataSource" destroy-method="close"
p:driverClass="com.mysql.jdbc.Driver"
p:jdbcUrl="jdbc:mysql://localhost/pesdog?autoReconnectForPools=true&autoReconnect=true&characterEncoding=utf-8"
p:username="root" p:password=""
p:idleConnectionTestPeriod="60" p:idleMaxAge="240"
p:maxConnectionsPerPartition="30" p:minConnectionsPerPartition="10"
p:partitionCount="3" p:acquireIncrement="5"
p:releaseHelperThreads="3"
/>
<context:annotation-config/><bean id="foo" class="test.Foo">
</bean>
public static void main(String[] args){
ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
Foo foo = (Foo)context.getBean("foo");
try{
foo.test();
}catch(Exception ex){
ex.printStackTrace();
}
}
@Component
public class Foo {
// @Autowired
private DataSource masterDataSource;
public DataSource getMasterDataSource() {
return masterDataSource;
}
@Required
@Autowired
public void setMasterDataSource(DataSource masterDataSource) {
this.masterDataSource = masterDataSource;
}
public void test() throws Exception{
Connection cn = this.masterDataSource.getConnection();
Statement stmt = cn.createStatement();
String sql = "select username,loginid from sys_user";
System.out.println(sql);
ResultSet rs = stmt.executeQuery(sql);
while(rs.next()){
System.out.println(rs.getString("username"));
System.out.println(rs.getString("loginid"));
}
}
}
Ïà¹ØÎĵµ£º
http://www.cn-java.com/www1/?action-viewnews-itemid-3295
ÎÒÏë£Ê£Á£Ö£ÁµÄ°®ºÃÕߣ¬ÓÈÆäÊdzõѧÕß´ó¶¼ÓйýÕâÑùµÄ¾Àú£¬¾ÍÊÇϲ»¶£Ê£Á£Ö£Á±à³ÌÓïÑÔ£¨Õâ¸öÈ˵ÄÇé¿ö¿ÉÄܲ»Ò»Ñù£©£¬µ«ÊÇÓÐʱºò×Ü»á¾õµÃJAVAµÄÓŵã±ãÊÇËýµÄ“ÖÂÃü”µÄȱµã¡£´ó¼ÒµÄÐÅÄîÒÀ¾ÉÊǓһ´Î±àÒ룬µ½´¦ÔËÐДµ«ÊǾÍÊÇÒòΪÖÁÒ»µã£Ê£Á£Ö£Á ......
1¡¢Ê×ÏȱØÐëÓиö½Ó¿Ú
package reflection;
public interface HelloWorld {
void sayHelloWorld();
void testHello(String hello);
}
2¡¢½Ó¿ÚµÄʵÏÖÀà
package reflection;
public class HelloWorldImpl implements HelloWorld {
public void sayHelloWorld() {
&n ......
---------------------------------------
Asp.Net,C#,SQL,JS,WCF,AJAX,¹¤×÷Á÷,WPF,MVC,LINQ,Éè¼ÆÄ£Ê½(¼Ü¹¹)µÈ¼¼ÊõÌÖÂÛ
“ASP.NET(C#)Fans” QQȺ£º96877690
---------------------------------------
²»¹ÜÊÇJ2SE¡¢J2EE»¹ÊÇJ2ME¾´Çë¼ÓÈ룡Eclipse¡¢NetBeans
Java½»Á÷QQ¸ß¼¶ÈºÀ©ÕУº96878255 ......
±¾ÎĽéÉÜJavaµÄBigDecimalÀàµÄÓ¦Óá£JavaÔÚjava.math°üÖÐÌṩµÄAPIÀàBigDecimal£¬ÓÃÀ´¶Ô³¬¹ý16λÓÐЧλµÄÊý½øÐо«È·µÄÔËËã¡£
BigDecimalÀà
Ë«¾«¶È¸¡µãÐͱäÁ¿double¿ÉÒÔ´¦Àí16λÓÐЧÊý¡£ÔÚʵ¼ÊÓ¦ÓÃÖУ¬ÐèÒª¶Ô¸ü´ó»òÕ߸üСµÄÊý½øÐÐÔËËãºÍ´¦Àí¡£JavaÔÚjava.math°üÖÐÌṩµÄAPIÀàBigDecimal£¬ÓÃÀ´¶Ô³¬¹ý16λÓÐЧλµÄÊý½øÐо«È· ......
JavaÓïÑÔ»ù´¡ÖªÊ¶
³ÌÐòÔ±¶Ô³ÌÐòÖеĸ÷¸öÔªËØ¼ÓÒÔÃüÃûʱʹÓõÄÃüÃû¼ÇºÅ³ÆÎª±êʶ·û£¨identifier£©¡£
JavaÓïÑÔÖУ¬±êʶ·ûÊÇÒÔ×Öĸ£¬Ï»®Ïߣ¨_£©,ÃÀÔª·û($)¿ªÊ¼µÄÒ»¸ö×Ö·ûÐòÁУ¬ºóÃæ¿ÉÒÔ¸ú×Öĸ£¬Ï»®Ïߣ¬ÃÀÔª·û£¬Êý×Ö¡£
ÀýÈ磬identifier£¬userName£¬User_Name£¬_sys_val£¬ $changeΪºÏ·¨µÄ±êʶ·û£¬¶ø2mail room#£¬class Ϊ· ......