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public static SignInfo getSignInfo(ExtrinsicState key){
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//设置返回对象
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SignInfo result=null;
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//池中没有该对象,则建立,并放入池中
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if(!pool.containsKey(key)){
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result=new SignInfo();
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pool.put(key,result);
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}else{
1700475239
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result=pool.get(key);
1700475241
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}
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return result;
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}
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}
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重点是看看我们的场景类,我们来测试一下性能差异,如代码清单28-15所示。
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代码清单28-15 场景类
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public class Client{
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public static void main(String[]args){
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1700475258
//初始化对象池
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ExtrinsicState state1=new ExtrinsicState();
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state1.setSubject(“科目1”);
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state1.setLocation(“上海”);
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1700475266
SignInfoFactory.getSignInfo(state1);
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1700475268
ExtrinsicState state2=new ExtrinsicState();
1700475269
1700475270
state2.setSubject(“科目1”);
1700475271
1700475272
state2.setLocation(“上海”);
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