Web 搴旂敤鍦ㄦ帴鍙楄〃鍗曟彁浜ょ殑鏁版嵁鍚庨兘闇瑕佸鍏惰繘琛屽悎娉曟ф鏌ワ紝濡傛灉琛ㄥ崟鏁版嵁涓嶅悎娉曪紝璇鋒眰灝嗚椹沖洖銆傜被浼肩殑錛屽綋鎴戜滑鍦ㄧ紪鍐欑被鐨勬柟娉曟椂錛屼篃甯稿父闇瑕佸鏂規硶鍏ュ弬榪涜鍚堟硶鎬ф鏌ワ紝濡傛灉鍏ュ弬涓嶇鍚堣姹傦紝鏂規硶灝嗛氳繃鎶涘嚭寮傚父鐨勬柟寮忔嫆緇濆悗緇鐞嗐備婦涓涓緥瀛愶細鏈変竴涓牴鎹枃浠跺悕鑾峰彇杈撳叆嫻佺殑鏂規硶錛欼nputStream getData(String file)錛屼負浜嗕嬌鏂規硶鑳藉鎴愬姛鎵ц錛屽繀欏諱繚璇?file 鍏ュ弬涓嶈兘涓?null 鎴栫┖鐧藉瓧絎︼紝鍚﹀垯鏍規湰鏃犻』榪涜鍚庣戶鐨勫鐞嗐傝繖鏃舵柟娉曠殑緙栧啓鑰呴氬父浼氬湪鏂規硶浣撶殑鏈鍓嶉潰緙栧啓涓孌靛鍏ュ弬榪涜媯嫻嬬殑浠ｇ爜錛屽涓嬫墍紺猴細
public InputStream getData(String file) { if (file == null || file.length() == 0|| file.replaceAll("\\s", "").length() == 0) { throw new IllegalArgumentException("file鍏ュ弬涓嶆槸鏈夋晥鐨勬枃浠跺湴鍧"); } … }綾諱技浠ヤ笂媯嫻嬫柟娉曞叆鍙傜殑浠ｇ爜鏄潪甯稿父瑙侊紝浣嗘槸鍦ㄦ瘡涓柟娉曚腑閮戒嬌鐢ㄦ墜宸ョ紪鍐欐嫻嬮昏緫鐨勬柟寮忓茍涓嶆槸涓涓ソ涓繪剰銆傞槄璇?Spring 婧愮爜錛屾偍浼氬彂鐜?Spring 閲囩敤涓涓?org.springframework.util.Assert 閫氱敤綾誨畬鎴愯繖涓浠誨姟銆?/span>
Assert 緲昏瘧涓轟腑鏂囦負“鏂█”錛屼嬌鐢ㄨ繃 JUnit 鐨勮鑰呴兘鐔熺煡榪欎釜姒傚康錛屽畠鏂畾鏌愪竴涓疄闄呯殑榪愯鍊煎拰棰勬湡鎯充竴鏍鳳紝鍚﹀垯灝辨姏鍑哄紓甯搞係pring 瀵規柟娉曞叆鍙傜殑媯嫻嬪熺敤浜嗚繖涓蹇碉紝鍏舵彁渚涚殑 Assert 綾繪嫢鏈変紬澶氭寜瑙勫垯瀵規柟娉曞叆鍙傝繘琛屾柇璦鐨勬柟娉曪紝鍙互婊¤凍澶ч儴鍒嗘柟娉曞叆鍙傛嫻嬬殑瑕佹眰銆傝繖浜涙柇璦鏂規硶鍦ㄥ叆鍙備笉婊¤凍瑕佹眰鏃跺氨浼氭姏鍑?IllegalArgumentException銆?/span>
杞嚜錛?/span>http://www.ibm.com/developerworks/cn/java/j-lo-spring-utils2/]]>