{"id":28227,"date":"2024-06-18T09:36:20","date_gmt":"2024-06-18T01:36:20","guid":{"rendered":"https:\/\/www.zhidianwl.net\/zhidianwl\/?p=28227"},"modified":"2024-06-18T09:36:20","modified_gmt":"2024-06-18T01:36:20","slug":"app%e5%bc%80%e5%8f%91%e4%b8%ad%e5%b8%b8%e8%a7%81%e7%9a%84%e9%94%99%e8%af%af%e6%9c%89%e5%93%aa%e4%ba%9b%e5%91%a2","status":"publish","type":"post","link":"https:\/\/www.zhidianwl.net\/zhidianwl\/2024\/06\/18\/app%e5%bc%80%e5%8f%91%e4%b8%ad%e5%b8%b8%e8%a7%81%e7%9a%84%e9%94%99%e8%af%af%e6%9c%89%e5%93%aa%e4%ba%9b%e5%91%a2\/","title":{"rendered":"app\u5f00\u53d1\u4e2d\u5e38\u89c1\u7684\u9519\u8bef\u6709\u54ea\u4e9b\u5462?"},"content":{"rendered":"
\u5728\u5e94\u7528\u7a0b\u5e8f\u5f00\u53d1\u8fc7\u7a0b\u4e2d\uff0c\u5e38\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u5e38\u89c1\u7684\u9519\u8bef\u3002\u8fd9\u4e9b\u9519\u8bef\u53ef\u80fd\u662f\u7531\u4e8e\u5f00\u53d1\u4eba\u5458\u7684\u758f\u5ffd\u6216\u4e0d\u6b63\u786e\u7684\u4ee3\u7801\u5bfc\u81f4\u7684\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u89c1\u7684\u9519\u8bef\uff0c\u5e76\u63d0\u4f9b\u4e00\u4e9b\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n
1. <\/p>\n
\u7a7a\u6307\u9488\u5f02\u5e38\uff08NullPointerException\uff09\uff1a\u8fd9\u662f\u6700\u5e38\u89c1\u7684\u9519\u8bef\u4e4b\u4e00\uff0c\u901a\u5e38\u662f\u7531\u4e8e\u8bbf\u95ee\u4e00\u4e2a\u7a7a\u5bf9\u8c61\u6216\u6ca1\u6709\u6b63\u786e\u521d\u59cb\u5316\u7684\u5bf9\u8c61\u5f15\u8d77\u7684\u3002\u89e3\u51b3\u65b9\u6cd5\u662f\u5728\u4f7f\u7528\u5bf9\u8c61\u4e4b\u524d\uff0c\u786e\u4fdd\u5bf9\u8c61\u4e0d\u4e3a\u7a7a\u3002<\/p>\n 2. \u6570\u7ec4\u8d8a\u754c\u5f02\u5e38\uff08ArrayIndexOutOfBoundsException\uff09\uff1a\u8fd9\u4e2a\u9519\u8bef\u53d1\u751f\u5728\u8bd5\u56fe\u8bbf\u95ee\u6570\u7ec4\u4e2d\u4e0d\u5b58\u5728\u7684\u7d22\u5f15\u4f4d\u7f6e\u65f6\u3002\u8981\u907f\u514d\u8fd9\u4e2a\u9519\u8bef\uff0c\u5fc5\u987b\u786e\u4fdd\u7d22\u5f15\u503c\u5728\u6570\u7ec4\u7684\u6709\u6548\u8303\u56f4\u5185\u3002<\/p>\n 3. \u7c7b\u578b\u8f6c\u6362\u5f02\u5e38\uff08ClassCastException\uff09\uff1a\u8fd9\u4e2a\u9519\u8bef\u901a\u5e38\u53d1\u751f\u5728\u8bd5\u56fe\u5c06\u4e00\u4e2a\u5bf9\u8c61\u8f6c\u6362\u4e3a\u4e0d\u517c\u5bb9\u7684\u7c7b\u578b\u65f6\u3002\u89e3\u51b3\u65b9\u6cd5\u662f\u5728\u8fdb\u884c\u7c7b\u578b\u8f6c\u6362\u4e4b\u524d\uff0c\u5148\u4f7f\u7528instanceof\u5173\u952e\u5b57\u68c0\u67e5\u5bf9\u8c61\u7684\u7c7b\u578b\u3002<\/p>\n 4. \u65b9\u6cd5\u672a\u627e\u5230\u5f02\u5e38\uff08NoSuchMethodException\uff09\uff1a\u8fd9\u4e2a\u9519\u8bef\u53d1\u751f\u5728\u8bd5\u56fe\u8c03\u7528\u4e00\u4e2a\u4e0d\u5b58\u5728\u7684\u65b9\u6cd5\u65f6\u3002\u89e3\u51b3\u65b9\u6cd5\u662f\u68c0\u67e5\u65b9\u6cd5\u540d\u548c\u53c2\u6570\u662f\u5426\u6b63\u786e\uff0c\u5e76\u786e\u4fdd\u65b9\u6cd5\u5728\u6240\u5c5e\u7684\u7c7b\u4e2d\u5b58\u5728\u3002<\/p>\n<\/figure>\n<\/p>\n