第六~八天(解决Bug)(ArrayIndexOutOfBoundsException)(DeBug断点的多线程打法!)(有效性验证)

1.线程的异步执行,不在启动线程的地方打断点,DeBug无效且IDEA显示application is running

.

2.ArrayIndexOutOfBoundsException,Coding需进行有效性验证,导师说代码大部分都是在做有效性验证.

String title = Strings.EMPTY;
if (!CollectionUtils.isEmpty(titleList) && titleList.size() > i ){
    title = titleList.get(i);
}
canvasAtlas(document, image, title);

3.Arrays.aslist() 数组转集合

List titleList = Arrays.asList(pathList.split("\\*"));

titleList使用add方法会抛出UnsupportedOperationException异常