1、将对对象的获取放在当前线程中,也即当前线程中new一个新对象出来
2、将对对象的获取放在定义出来的对象中操作。(推荐)
第一种方式:
/** * @author * @date 2017年4月16日下午3:46:41 * @description 线程范围内的共享对象如何设计 */ public class ThreadLocalTest { //如果需要多个变量跟当前线程线程相关时,把多个变量定义在一个对象中 private static ThreadLocal<OperatorData> myThreadData = new ThreadLocal<OperatorData>(); public static void main(String[] args) { for(int i = 0; i < 2; i++){ final int k = i; new Thread(new Runnable() { @Override public void run() { OperatorData threadData = new OperatorData(); threadData.setName("zhangsan" + k); threadData.setAge(k); threadData.setSex(k + ""); myThreadData.set(threadData); } }).start(); } } } /** * * @author * @description 将线程要操作的数据封装到一个对象中 */ class OperatorData{ private String name; private String sex; private int age; public String getName() { return name; } public void setName(String name) { this.name = name; } public String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } }
第二种方式:
/** * @author * @date 2017年4月16日下午3:46:41 * @description 线程范围内的共享对象如何设计 */ public class ThreadLocalTest { public static void main(String[] args) { for(int i = 0; i < 2; i++){ final int k = i; new Thread(new Runnable() { @Override public void run() { OperatorData threadData = OperatorData.getInstance(); threadData.setName("zhangsan" + k); threadData.setAge(k); threadData.setSex(k + ""); } }).start(); } } } /** * * @author * @description 将线程要操作的数据封装到一个对象中 */ class OperatorData{ private String name; private String sex; private int age; //模仿单列的写法 private OperatorData(){}; private static ThreadLocal<OperatorData> myThreadDataLocal = new ThreadLocal<OperatorData>(); public static OperatorData getInstance(){ OperatorData instance = myThreadDataLocal.get(); if(instance == null){ instance = new OperatorData(); myThreadDataLocal.set(instance); } return instance; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } }