How to use java soft references in the browser

Instructions

1. If a webpage recycles its content at the end of browsing, it needs to be rebuilt when you press Back to view the previously browsed page.

2. If the browsed web pages are stored in memory, it will cause a lot of memory waste and even lead to memory overflow.

Example

    // 获取浏览器对象进行浏览
    Browser browser = new Browser();
    // 从后台程序加载浏览页面
    BrowserPage page = browser.getPage();
    // 将浏览完毕的页面置为软引用
    SoftReference softReference = new SoftReference(page);
 
    // 回退或者再次浏览此页面时
    if(softReference.get() != null) {
        // 内存充足，还没有被回收器回收，直接获取缓存
        page = softReference.get();
    } else {
        // 内存不足，软引用的对象已经回收
        page = browser.getPage();
        // 重新构建软引用
        softReference = new SoftReference(page);
    }

What Java can be used for

Java is mainly used in: 1. web development; 2. Android development; 3. client Development; 4. Web development; 5. Enterprise-level application development; 6. Java big data development; 7. Game development, etc.

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