高效 告别996,开启java高效编程之门 4-5TWR进阶与特殊情况
2021-01-08 11:28
标签:tac dea 物理 org ring throw 情况 nal file 1.1 TWR简介 1.2 class反编译查看TWR方式关闭物理流资源 ◆Java7引入新特性 ◆资源对象被return的情况下,由调用方关闭 高效 告别996,开启java高效编程之门 4-5TWR进阶与特殊情况 标签:tac dea 物理 org ring throw 情况 nal file 原文地址:https://www.cnblogs.com/1446358788-qq/p/12967384.html1 重点:
2 TWR简介
◆优雅关闭资源
◆一种Java语法糖3 class反编译查看TWR方式关闭物理流资源(idea内置工具class反编译)
//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by Fernflower decompiler)
//
package com.imooc.zhangxiaoxi.resource;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import org.junit.Test;
public class FileCopyTestNew {
public FileCopyTestNew() {
}
@Test
public void fileCopyTestNew() {
String fileInputStreamUrl = "lib2/FileCopyTest.java";
String fileOutputStreamUrl = "targetTest/target2.txt";
try {
FileInputStream fileInputStream = new FileInputStream(fileInputStreamUrl);
Throwable var4 = null;
try {
FileOutputStream fileOutputStream = new FileOutputStream(fileOutputStreamUrl);
Throwable var6 = null;
try {
int conent;
try {
while((conent = fileInputStream.read()) != -1) {
fileOutputStream.write(conent);
}
} catch (Throwable var22) {
var6 = var22;
throw var22;
}
} finally {
$closeResource(var6, fileOutputStream);
}
} catch (Throwable var24) {
var4 = var24;
throw var24;
} finally {
$closeResource(var4, fileInputStream);
}
} catch (FileNotFoundException var26) {
var26.printStackTrace();
} catch (IOException var27) {
var27.printStackTrace();
}
}
}
4 课程缺失
5 资源关闭特殊情况
◆ByteArraylnputStream等不需要检查关闭的资源对象,
◆使用Socket获取的InputStream和OutputStream对象不需要关闭
文章标题:高效 告别996,开启java高效编程之门 4-5TWR进阶与特殊情况
文章链接:http://soscw.com/essay/40914.html