{"rsdb":{"rid":"241235","subhead":"","postdate":"0","aid":"166120","fid":"76","uid":"1","topic":"1","content":"<div class=\"entry\"> \n <div class=\"copyright-area\">\n  \u539f\u6587\u51fa\u5904\uff1a \n  <a>\u7334\u5b50007<\/a>\n <\/div> \n <p>\u586b\u5751\uff0c\u6574\u7406\u4e0bJava\u7684\u5e38\u7528\u5f02\u5e38\u3002\u6b63\u786e\u4f7f\u7528\u5f02\u5e38\u5728\u5b9e\u9645\u7f16\u7801\u4e2d\u975e\u5e38\u91cd\u8981\uff0c\u4f46\u9762\u8bd5\u4e2d\u7684\u610f\u4e49\u76f8\u5bf9\u8f83\u5c0f\uff0c\u56e0\u4e3a\u5bf9\u5f02\u5e38\u7684\u7406\u89e3\u548c\u5e94\u7528\u5f88\u96be\u901a\u8fc7\u51e0\u53e5\u8bdd\u6216\u51e0\u884c\u4ee3\u7801\u8003\u67e5\u51fa\u6765\uff0c\u4e0d\u8fc7\u6211\u4eec\u81f3\u5c11\u5e94\u7b54\u51fa\u4e09\u70b9\uff1a\u5f02\u5e38\u7c7b\u7684\u7ee7\u627f\u5173\u7cfb\u3001\u5e38\u7528\u5f02\u5e38\u7c7b\u3001\u5e38\u7528\u5f02\u5e38\u7c7b\u7684\u4f7f\u7528\u573a\u666f\uff0c\u4e0b\u6587\u5c06\u56f4\u7ed5\u8fd9\u4e09\u70b9\u4ecb\u7ecd\u3002<\/p> \n <h2 id=\"\u5f02\u5e38\u7c7b\u7684\u7ee7\u627f\u5173\u7cfb\">\u5f02\u5e38\u7c7b\u7684\u7ee7\u627f\u5173\u7cfb<\/h2> \n <p><img src=\"http:\/\/oh4pp6966.bkt.clouddn.com\/static\/images\/Java%E7%9A%84%E5%B8%B8%E7%94%A8%E5%BC%82%E5%B8%B8%E6%95%B4%E7%90%86\/java_exception.png\" alt=\"java_exception\" \/><\/p> \n <p>Java\u4e2d\uff0c\u6240\u6709\u5f02\u5e38\u90fd\u7ee7\u627f\u81eaThrowable\u7c7b\uff08\u4e00\u4e2a\u5b8c\u6574\u53ef\u7528\u7684\u7c7b\uff09\u3002\u6574\u4f53\u4e0a\u5206\u4e3aError\u3001Exception\u4e24\u4e2a\u5927\u7c7b\uff0cException\u5927\u7c7b\u53c8\u5206\u4e3aUncheckedException\uff08\u7ee7\u627f\u4e8eRuntimeException\uff09\u548cCheckedException\uff08\u7ee7\u627f\u4e8eException\uff0c\u4f46\u4e0d\u7ee7\u627f\u4e8eRuntimeException\uff09\u3002<\/p> \n <p>\u4e3a\u4e86\u5e2e\u52a9\u7406\u89e3\uff0c\u6211\u5728\u6bcf\u4e2a\u7c7b\u522b\u4e0b\u90fd\u7ed9\u51fa\u4e86\u4e24\u4e2a\u5e38\u7528\u5b50\u7c7b\uff0c\u5982Error\u5305\u62ecOutOfMemoryError\u3001AssertionError\u7b49\uff1bUncheckedException\u5305\u62ecNullPointerException\u3001IllegalArgumentException\uff1bCheckedException\u5305\u62ecIOException\u3001InterruptedException\u3002\u9762\u8bd5\u753b\u5f02\u5e38\u7c7b\u7684\u7ee7\u627f\u5173\u7cfb\u65f6\uff0c\u8981\u6c42\u80fd\u6e05\u695a\u7684\u8bf4\u660e\u51e0\u4e2a\u7c7b\u522b\u5e76\u5206\u7c7b\u522b\u4e3e\u51e0\u4e2a\u5e38\u7528\u7684\u5f02\u5e38\u7c7b\u3002<\/p> \n <h2 id=\"\u5e38\u7528\u5f02\u5e38\u7c7b\">\u5e38\u7528\u5f02\u5e38\u7c7b<\/h2> \n <p>\u4e0b\u9762\u5206\u7c7b\u522b\u6269\u5145\u4e00\u4e0b\u5e38\u7528\u7684\u5f02\u5e38\u7c7b\uff0c\u5b57\u5178\u5e8f\u6392\u5e8f\uff1a<\/p> \n <table> \n  <thead> \n   <tr> \n    <th>\u7c7b\u522b<\/th> \n    <th>\u5e38\u7528\u5f02\u5e38\u7c7b<\/th> \n   <\/tr> \n  <\/thead> \n  <tbody> \n   <tr> \n    <td>Error<\/td> \n    <td>AssertionError\u3001OutOfMemoryError\u3001StackOverflowError<\/td> \n   <\/tr> \n   <tr> \n    <td>UncheckedException<\/td> \n    <td>AlreadyBoundException\u3001ClassCastException\u3001ConcurrentModificationException\u3001IllegalArgumentException\u3001IllegalStateException\u3001IndexOutOfBoundsException\u3001JSONException\u3001NullPointerException\u3001SecurityException\u3001UnsupportedOperationException<\/td> \n   <\/tr> \n   <tr> \n    <td>CheckedException<\/td> \n    <td>ClassNotFoundException\u3001CloneNotSupportedException\u3001FileAlreadyExistsException\u3001FileNotFoundException\u3001InterruptedException\u3001IOException\u3001SQLException\u3001TimeoutException\u3001UnknownHostException<\/td> \n   <\/tr> \n  <\/tbody> \n <\/table> \n <p>\u9700\u8981\u7740\u91cd\u7406\u89e3\u7684\u662fUncheckedException\u3002<\/p> \n <p>\u4e0a\u8ff0\u5f02\u5e38\u7c7b\u90fd\u662f\u5f88\u5e38\u89c1\u7684\uff0c\u4f46\u5176\u4e2d\u51e0\u4e2a\u5f02\u5e38\u7c7b\u8bbe\u8ba1\u7684\u4e0d\u597d\uff0c\u9700\u8981\u6ce8\u610f\uff1a<\/p> \n <ul> \n  <li>ConcurrentModificationException\uff1a\u5b9e\u73b0\u201c\u5feb\u901f\u5931\u8d25\u201d\u7684\u673a\u5236\uff0c\u4f46\u5b9e\u9645\u4e0a\uff0c\u201c\u5feb\u901f\u5931\u8d25\u201d\u673a\u5236\u672c\u8eab\u4ecd\u7136\u65e0\u6cd5\u4fdd\u8bc1\u5e76\u53d1\u73af\u5883\u4e0b\u5b89\u5168\u6027\uff0c\u53c2\u8003<a class=\"external\" rel=\"nofollow\" target=\"_blank\">\u6e90\u7801|\u4ece\u6e90\u7801\u5206\u6790\u975e\u7ebf\u7a0b\u5b89\u5168\u96c6\u5408\u7c7b\u7684\u4e0d\u5b89\u5168\u8fed\u4ee3\u5668<\/a>\u3002\u56e0\u6b64\uff0c\u867d\u7136\u8be5\u5f02\u5e38\u5f88\u5e38\u89c1\uff0c\u4e0d\u8981\u53bb\u4f9d\u8d56\u5b83\u3002<\/li> \n  <li>JSONException\uff1a\u5e38\u89c1\u4e8ejson\u5b57\u7b26\u4e32\u89e3\u6790\u5931\u8d25\u7684\u60c5\u51b5\uff0c\u4f46\u906e\u853d\u4e86\u5927\u91cf\u7684\u5931\u8d25\u7ec6\u8282\uff0c\u5f80\u5f80\u5f88\u96be\u6839\u636e\u8be5\u5f02\u5e38\u4f5c\u51fa\u5904\u7406\u3002\u5982\u679c\u9879\u76ee\u4e2d\u5927\u91cf\u4f7f\u7528json\uff0c\u5efa\u8bae\u4f7f\u7528\u7b2c\u4e09\u65b9\u7684json\u89e3\u6790\u5e93\uff0c\u5982gson\u7b49\u3002<\/li> \n  <li>UnsupportedOperationException\uff1a\u8fd9\u662f\u4e00\u79cd\u7f16\u7801\u4e0a\u7684\u6076\u6027\u59a5\u534f\uff0c\u7ecf\u5e38\u5728\u62bd\u8c61\u7c7b\u7684\u6210\u5458\u65b9\u6cd5\u4e2d\u88ab\u7528\u6237\u4e3b\u52a8\u629b\u51fa\uff0c\u8868\u793a\u8be5\u65b9\u6cd5\u8fd8\u672a\u5b9e\u73b0\u7b49\uff0c\u4f46\u7531\u4e8e\u662fUncheckedException\uff0c\u8fd0\u884c\u671f\u624d\u80fd\u591f\u53d1\u73b0\uff0c\u5b8c\u5168\u65e0\u76ca\u4e8e\u7f16\u7801\u671f\u95f4\u7684\u5b89\u5168\u6027\u3002\u81ea\u5df1\u7f16\u7801\u65f6\u5c3d\u91cf\u4e0d\u8981\u4f7f\u7528\u3002<\/li> \n  <li>SQLException\uff1a\u4e0eJSONException\u539f\u56e0\u76f8\u4f3c\uff0c\u4f46\u5176\u906e\u853d\u7684\u5931\u8d25\u7ec6\u8282\u8303\u56f4\u66f4\u5e7f\u3002\u540c\u65f6\uff0cSQLException\u8fd8\u662f\u4e00\u4e2aCheckedException\uff0c\u5728\u4e0d\u80fd\u89e3\u51b3\u95ee\u9898\u7684\u60c5\u51b5\u4e0b\uff0c\u53c8\u4f7f\u4ee3\u7801\u53d8\u7684\u81c3\u80bf\u4e0d\u582a\u3002\u5efa\u8bae\u540c\u3002\u5982\u679c\u505aJava Web\u5f00\u53d1\uff0c\u70ed\u95e8\u7684ORM\u5e93\u90fd\u80fd\u89e3\u51b3\u4e0a\u8ff0\u95ee\u9898\u3002<\/li> \n <\/ul> \n <h2 id=\"\u5e38\u7528\u5f02\u5e38\u7c7b\u7684\u4f7f\u7528\u573a\u666f\">\u5e38\u7528\u5f02\u5e38\u7c7b\u7684\u4f7f\u7528\u573a\u666f<\/h2> \n <p>\u5e38\u7528\u5f02\u5e38\u8fd8\u662f\u6709\u70b9\u591a\uff0c\u4e0b\u9762\u5206\u522b\u8bb2\u89e3\u4e0a\u8ff0\u4e09\u4e2a\u7c7b\u522b\u7684\u4f7f\u7528\u573a\u666f\uff0c\u5e76\u5728\u6bcf\u4e2a\u7c7b\u522b\u4e2d\u9009\u4e00\u4e2a\u4f8b\u5b50\u8fdb\u884c\u8bb2\u89e3\u3002<\/p> \n <h3 id=\"Error\">Error<\/h3> \n <p>Error\u901a\u5e38\u63cf\u8ff0\u4e86\u7cfb\u7edf\u7ea7\u7684\u9519\u8bef\uff0c\u5e76\u4e14\u7a0b\u5e8f\u733f\u65e0\u6cd5\u4e3b\u52a8\u5904\u7406\u2014\u2014\u5f53\u7136\uff0c\u7cfb\u7edf\u7ea7\u9519\u8bef\u4e5f\u6709\u53ef\u80fd\u7531\u4ee3\u7801\u95f4\u63a5\u5bfc\u81f4\uff0c\u8fd9\u4e0d\u5728\u6211\u4eec\u7684\u8ba8\u8bba\u8303\u56f4\u5185\u3002\u53d1\u751f\u7cfb\u7edf\u7ea7\u9519\u8bef\u7684\u65f6\u5019\uff0c\u7cfb\u7edf\u73af\u5883\u5df2\u7ecf\u4e0d\u5065\u5eb7\u4e86\uff0c\u56e0\u6b64\uff0cError\u4e0d\u5f3a\u5236\u6355\u83b7\u6216\u58f0\u660e\uff0c\u4e5f\u5c31\u662f\u4e0d\u5f3a\u5236\u5904\u7406\uff0c\u4e00\u822c\u60c5\u51b5\u4e0b\u53ea\u9700\u8981\u628a\u5f02\u5e38\u4fe1\u606f\u8bb0\u5f55\u4e0b\u6765\uff08\u5982\u679c\u80fd\u8bb0\u4e0b\u5f53\u65f6\u7684\u7cfb\u7edf\u5feb\u7167\u66f4\u597d\uff09\u3002<\/p> \n <h3>OutOfMemoryError<\/h3> \n <p>\u5f53\u53ef\u7528\u5185\u5b58\u4e0d\u8db3\u65f6\uff0c\u4f1a\u7531JVM\u629b\u51faOutOfMemoryError\u3002\u4e00\u822c\u7531\u4e09\u79cd\u539f\u56e0\u5bfc\u81f4\uff1a<\/p> \n <ul> \n  <li>\u5806\u8bbe\u7f6e\u8fc7\u5c0f\uff0c\u4e0d\u6ee1\u8db3\u6b63\u5e38\u7684\u5185\u5b58\u9700\u6c42<\/li> \n  <li>\u4ee3\u7801\u4e2d\u5b58\u5728\u5185\u5b58\u6cc4\u9732\uff0c\u5360\u7528\u4e86\u5927\u91cf\u5185\u5b58\u800c\u4e0d\u80fd\u88ab\u56de\u6536<\/li> \n  <li>\u9009\u62e9\u7684GC\u7b97\u6cd5\u4e0e\u67d0\u4e9b\u6781\u7aef\u7684\u5e94\u7528\u573a\u666f\u4e0d\u5339\u914d\uff0c\u5185\u5b58\u788e\u7247\u8fc7\u591a\uff0c\u6ca1\u6709\u8db3\u591f\u5927\u7684\u8fde\u7eed\u7a7a\u95f4\u5206\u914d\u7ed9\u5bf9\u8c61<\/li> \n <\/ul> \n <p>JVM\u629b\u51faOutOfMemoryError\u524d\uff0c\u4f1a\u5c1d\u8bd5\u8fdb\u884c\u4e00\u6b21Full GC\uff0c\u5982\u679cGC\u540e\u53ef\u7528\u5185\u5b58\u8fd8\u662f\u4e0d\u8db3\uff0c\u624d\u4f1a\u629b\u51faOutOfMemoryError\u3002\u56e0\u6b64\uff0c\u8fd9\u65f6\u7a0b\u5e8f\u733f\u5fc5\u7136\u65e0\u6cd5\u4e3b\u52a8\u5904\u7406\u8fd9\u4e00\u95ee\u9898\uff0c\u53ea\u80fd\u7b49\u7a0b\u5e8f\u5d29\u6e83\u540e\u518d\u53bb\u67e5\u8bc1\u539f\u56e0\u3002<\/p> \n <blockquote>\n  <p>\u67e5\u8bc1OutOfMemoryError\u7684\u6280\u5de7\u8db3\u4ee5\u5355\u5f00\u4e00\u7bc7\u6587\u7ae0\u4e86\uff0c\u672c\u6587\u4e0d\u4f5c\u6df1\u5165\u3002<\/p>\n <\/blockquote> \n <h3 id=\"UncheckedException\">UncheckedException<\/h3> \n <p>\u4e25\u683c\u6765\u8bf4\uff0cError\u4e5f\u53ef\u4ee5\u88ab\u5212\u5f52UncheckedException\uff0c\u4f46\u6211\u4eec\u66f4\u4e60\u60ef\u7528UncheckedException\u63cf\u8ff0\u8fd0\u884c\u671f\u53d1\u751f\uff0c\u901a\u5e38\u7531\u4e8e\u4ee3\u7801\u95ee\u9898\u76f4\u63a5\u5f15\u8d77\u7684\u7a0b\u5e8f\u76f8\u5173\u7684\u9519\u8bef\uff0c\u5e76\u4e14\u7a0b\u5e8f\u733f\u65e0\u6cd5\u4e3b\u52a8\u5904\u7406\u3002\u6ce8\u610f\u533a\u5206\uff0c<em>\u7cfb\u7edf\u7ea7\u9519\u8bef\u90fd\u5e94\u8be5\u7528Error\u63cf\u8ff0<\/em>\u3002UncheckedException\u53d1\u751f\u7684\u5927\u90e8\u5206\u60c5\u51b5\u662f\u4ee3\u7801\u5199\u632b\u4e86\uff0c\u56e0\u6b64\uff0cUncheckedException\u4e5f\u4e0d\u5f3a\u5236\u6355\u83b7\u6216\u58f0\u660e\uff0c\u4e5f\u5c31\u662f\u4e0d\u5f3a\u5236\u5904\u7406\uff0c\u4e00\u822c\u60c5\u51b5\u4e0b\u8bb0\u4e0b\u65e5\u5fd7\u5373\u53ef\u3002<\/p> \n <p>\u4e0d\u540c\u7684\u662f\uff0c\u5982\u679c\u53ef\u80fd\uff0c\u8981\u4fdd\u8bc1UncheckedException\u662f\u53ef\u63a7\u7684\uff08\u5728\u5f02\u5e38\u88ab\u52a8\u629b\u51fa\u524d\u68c0\u67e5\u5e76\u4e3b\u52a8\u629b\u51fa\uff09\u3002<\/p> \n <blockquote>\n  <p>JSONException\u5c31\u662f\u4e0d\u53ef\u63a7\u7684\u3002<\/p>\n <\/blockquote> \n <h3 id=\"NullPointerException\">NullPointerException<\/h3> \n <p>NullPointerException\u662f\u6700\u5e38\u89c1\u7684UncheckedException\u3002\u5982\u679c\u5728\u4e00\u4e2a\u7a7a\u6307\u9488\u4e0a\u5f15\u7528\u65b9\u6cd5\u6216\u53d8\u91cf\u7b49\uff0c\u5219\u8fd0\u884c\u671f\u4f1a\u629b\u51faNullPointerException\u3002\u7a7a\u6307\u9488\u8ba9\u7a0b\u5e8f\u53d8\u7684\u4e0d\u53ef\u63a7\uff1a\u5982\u679c\u4efb\u7531\u7a7a\u6307\u9488\u5728\u7a0b\u5e8f\u8fd0\u884c\u671f\u968f\u610f\u4f20\u9012\u3001\u4f7f\u7528\uff0c\u6211\u4eec\u5c06\u65e0\u6cd5\u786e\u5b9a\u7a0b\u5e8f\u7684\u884c\u4e3a\uff0c\u4e5f\u65e0\u6cd5\u786e\u5b9a\u6355\u83b7NullPointerException\u65f6\u7a0b\u5e8f\u6240\u5904\u7684\u72b6\u6001\u3002<\/p> \n <p>\u89e3\u51b3\u8fd9\u4e00\u95ee\u9898\u7684\u65b9\u6cd5\u5f88\u7b80\u5355\uff1a<\/p> \n <ul> \n  <li>\u5c3d\u65e9\u68c0\u67e5\u5e76\u4e3b\u52a8\u629b\u51fa\u5f02\u5e38<\/li> \n  <li>\u5355\u72ec\u3001\u63d0\u524d\u5904\u7406\u8fb9\u754c\u6761\u4ef6<\/li> \n  <li>\u5c3d\u91cf\u4e0d\u4f7f\u7528null\u8868\u793a\u72b6\u6001\uff0c\u7279\u522b\u662f\u5728\u96c6\u5408\u4e2d<\/li> \n <\/ul> \n <p>\u524d\u4e24\u6761\u539f\u5219\u901a\u7528\u4e8e\u5927\u90e8\u5206UncheckedException\uff0c\u53ef\u53c2\u8003String#toLowerCase()\u7684\u4f8b\u5b50\u3002\u7b2c\u4e09\u6761\u539f\u5219\u9700\u8981\u5728\u4ee3\u7801\u7684\u5065\u58ee\u4e0e\u7b80\u6d01\u4e4b\u95f4\u505a\u51fa\u6743\u8861\uff0c\u6709\u9650\u4fdd\u8bc1\u7b80\u6d01\u6e05\u6670\uff0c\u9700\u8981\u5065\u58ee\u518d\u53bb\u5065\u58ee\u3002<\/p> \n <h3 id=\"CheckedException\">CheckedException<\/h3> \n <blockquote>\n  <p>\u7334\u5b50\u5bf9CheckedException\u7684\u7406\u89e3\u4e0d\u5230\u4f4d\uff0c\u5982\u679c\u5404\u4f4d\u6709\u66f4\u597d\u7684\u7406\u89e3\u5e0c\u671b\u80fd\u4ea4\u6d41\u4e00\u4e0b\u3002\u4ee5\u4e0b\u8bb2\u7334\u5b50\u201c\u4e0d\u5230\u4f4d\u201d\u7684\u7406\u89e3\u3002<\/p>\n <\/blockquote> \n <p>CheckedException\u63cf\u8ff0\u4e86\u5916\u90e8\u73af\u5883\u5bfc\u81f4\u7684\u4e0d\u592a\u4e25\u91cd\u7684\u9519\u8bef\uff0c\u7a0b\u5e8f\u733f\u5e94\u8be5\u4e3b\u52a8\u5904\u7406\u3002\u6ce8\u610f\u4e0e\u7cfb\u7edf\u7ea7\u9519\u8bef\u533a\u5206\uff0c\u7cfb\u7edf\u7ea7\u9519\u8bef\u901a\u5e38\u662f\u4e0d\u53ef\u6062\u590d\u7684\u3002\u56e0\u6b64\uff0cCheckedException\u5f3a\u5236\u6355\u83b7\u6216\u58f0\u660e\uff0c\u7a0b\u5e8f\u733f\u5fc5\u987b\u5904\u7406\u3002\u8bb0\u5f55\u65e5\u5fd7\uff0c\u5305","orderid":"0","title":"Java \u5e38\u7528\u5f02\u5e38\u6574\u7406(\u4e00)","smalltitle":"","mid":"0","fname":"JAVA","special_id":"0","bak_id":"0","info":"0","hits":"417","pages":"2","comments":"0","posttime":"2017-11-16 08:42:18","list":"1510792938","username":"admin","author":"","copyfrom":"","copyfromurl":"","titlecolor":"","fonttype":"0","titleicon":"0","picurl":"http:\/\/oh4pp6966.bkt.clouddn.com\/static\/images\/Java%E7%9A%84%E5%B8%B8%E7%94%A8%E5%BC%82%E5%B8%B8%E6%95%B4%E7%90%86\/java_exception.png","ispic":"1","yz":"1","yzer":"","yztime":"0","levels":"0","levelstime":"0","keywords":"<A HREF='https:\/\/www.cppentry.com\/do\/search.php?type=keyword&keyword=Java' target=_blank>Java<\/A> <A HREF='https:\/\/www.cppentry.com\/do\/search.php?type=keyword&keyword=%B3%A3%D3%C3' target=_blank>\u5e38\u7528<\/A> <A HREF='https:\/\/www.cppentry.com\/do\/search.php?type=keyword&keyword=%D2%EC%B3%A3' target=_blank>\u5f02\u5e38<\/A> <A HREF='https:\/\/www.cppentry.com\/do\/search.php?type=keyword&keyword=%D5%FB%C0%ED' target=_blank>\u6574\u7406<\/A>","jumpurl":"","iframeurl":"","style":"","template":"a:3:{s:4:\"head\";s:0:\"\";s:4:\"foot\";s:0:\"\";s:8:\"bencandy\";s:0:\"\";}","target":"0","ip":"14.20.29.17","lastfid":"0","money":"0","buyuser":"","passwd":"","allowdown":"","allowview":"","editer":"","edittime":"0","begintime":"0","endtime":"0","description":"Java \u5e38\u7528\u5f02\u5e38\u6574\u7406","lastview":"1713459436","digg_num":"0","digg_time":"0","forbidcomment":"0","ifvote":"0","heart":"","htmlname":"","city_id":"0"},"page":"1"}