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o java -Xmx3550m -Xms3550m -Xss128k -XX:NewRatio=4-XX:SurvivorRatio=4 -XX:MaxPermSize=16m -XX:MaxTenuringThreshold=0-XX:NewRatio=4:设置年轻代（包括Eden和两个Survivor区）与年老代的比值（除去持久代）。§ java -Xmx3550m -Xms3550m -Xmn2g -Xss128k -XX:ParallelGCThreads=20 -XX:+UseConcMarkSweepGC-XX:+UseParNewGC-XX:... 阅44 转0 评0 公众公开 15-04-22 14:20 |
spring.4 UserDao userDao = (UserDao)ctx.getBean("userDaoImpl");5 UserDao userDao1A =(UserDao)ctx.getBean("userDaoImpl");6 UserDao userDao1B =(UserDao)ctx.getBean("userDaoImpl");7 System.out.println("userDao1A== userDao1B:" + (userDao1A==userDao1B));11 System.ou... 阅55 转0 评0 公众公开 15-04-22 14:02 |
Struts2 继承ActionSupport的用处。Action接口有:public static final java.lang.String SUCCESS = "success";public static final java.lang.String NONE = "none";public static final java.lang.String ERROR = "error";public static final java.lang.String INPUT = "input";public static final... 阅1750 转11 评0 公众公开 15-04-22 14:01 |
我们还是从需求出发.我们假设有4个bean.分别是bean2,bean3,bean4,bean5..其中,bean2里面有后面几个。publicvoid setBean3(Bean3 bean3) { this.bean3 = bean3;publicvoid setBean4(Bean4 bean4) { this.bean4 = bean4;<beanid="bean2" class="com.test.model.Bean2"> <property name="bean3" ref=&q... 阅324 转2 评0 公众公开 15-04-22 14:00 |
public static SingletonClass getInstance() { if(instance == null) { instance = new SingletonClass();public synchronized static SingletonClass getInstance() { if(instance == null) { instance = new SingletonClass();public class SingletonClass { private static class SingletonClassInstance { ... 阅21 转0 评0 公众公开 15-04-22 13:56 |
Struts2中的session、request、respsonse获取方法。Struts2中的action跟struts1中的action不一样，struts1中的request、response对象都是通过参数引入的。而struts2对这些对象跟业务逻辑进行了真正的分离，struts对session、request、response等对象进行了封装，获取这些对象也有了不同的方法，下面为两种获取这些对象的方法：//获取session的... 阅45 转0 评0 公众公开 15-04-22 13:54 |
jdk1.5新特性。Integer integer = new Integer(1);//在jdk1.5中你可以这么写; int --> Integer.public static void main(String[] args) {Integer int1 = new Integer(20);Integer int2 = new Integer(20);Integer.*;public static void jdk14(String[] strs) {public static void jdk15(String[] strs) {ForEach.jdk14(strs);public static... 阅47 转1 评0 公众公开 15-04-22 13:46 |
