鍦↗ava涓紝鍙互閫氳繃浠ヤ笅涓ょ鏂瑰紡鏉ュ畾涔夊紓甯革細

1. 缁ф壙鑷?code>Exception绫绘垨鍏跺瓙绫伙細鍙互鍒涘缓涓€涓嚜瀹氫箟鐨勫紓甯哥被锛岀户鎵胯嚜Exception绫绘垨鍏跺瓙绫汇€傝繖鏍风殑寮傚父绫诲彲浠ュ寘鍚嚜瀹氫箟鐨勫睘鎬у拰鏂规硶锛屼互鍙婇噸鍐?code>Exception绫讳腑鐨勬柟娉曘€傜ず渚嬶細

public class CustomException extends Exception {
    // 鑷畾涔夊睘鎬у拰鏂规硶

    @Override
    public String getMessage() {
        // 閲嶅啓getMessage()鏂规硶
        return "鑷畾涔夊紓甯镐俊鎭?quot;;
    }
}

2. 瀹炵幇Throwable鎺ュ彛锛氬彲浠ュ垱寤轰竴涓疄鐜颁簡Throwable鎺ュ彛鐨勮嚜瀹氫箟寮傚父绫汇€傝繖绉嶆柟寮忛€傜敤浜庡畾涔変竴涓笉闇€瑕佸叿澶囩户鎵垮叧绯荤殑寮傚父绫诲瀷銆傜ず渚嬶細

public class CustomException implements Throwable {
    // 瀹炵幇鎺ュ彛涓殑鏂规硶
}

鍦ㄤ娇鐢ㄨ嚜瀹氫箟寮傚父鏃讹紝鍙互閫氳繃throw鍏抽敭瀛楁姏鍑哄紓甯稿璞★紝渚嬪锛?/p>

public void someMethod() throws CustomException {
    // 鎶涘嚭鑷畾涔夊紓甯?    throw new CustomException();
}

鍦ㄨ皟鐢ㄨ鏂规硶鏃讹紝濡傛灉鍙戠敓寮傚父锛屽彲浠ラ€氳繃try-catch璇彞鍧楁潵鎹曡幏骞跺鐞嗗紓甯搞€備緥濡傦細

try {
    someMethod();
} catch (CustomException e) {
    // 澶勭悊寮傚父
    e.printStackTrace();
}