Skip to content

文档修改，去除多余字 #2510

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Oct 24, 2024
Merged

文档修改，去除多余字 #2510

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion docs/java/jvm/classloader.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -326,7 +326,7 @@ Tomcat 这四个自定义的类加载器对应的目录如下：

拿 Spring 这个例子来说，当 Spring 需要加载业务类的时候，它不是用自己的类加载器，而是用当前线程的上下文类加载器。还记得我上面说的吗？每个 Web 应用都会创建一个单独的 `WebAppClassLoader`，并在启动 Web 应用的线程里设置线程线程上下文类加载器为 `WebAppClassLoader`。这样就可以让高层的类加载器（`SharedClassLoader`）借助子类加载器（ `WebAppClassLoader`）来加载业务类，破坏了 Java 的类加载委托机制，让应用逆向使用类加载器。

线程线程上下文类加载器的原理是将一个类加载器保存在线程私有数据里，跟线程绑定，然后在需要的时候取出来使用。这个类加载器通常是由应用程序或者容器（如 Tomcat）设置的。
线程上下文类加载器的原理是将一个类加载器保存在线程私有数据里，跟线程绑定，然后在需要的时候取出来使用。这个类加载器通常是由应用程序或者容器（如 Tomcat）设置的。

`Java.lang.Thread` 中的`getContextClassLoader()`和 `setContextClassLoader(ClassLoader cl)`分别用来获取和设置线程的上下文类加载器。如果没有通过`setContextClassLoader(ClassLoader cl)`进行设置的话，线程将继承其父线程的上下文类加载器。

Expand Down