{"id":203585,"date":"2025-05-22T11:06:20","date_gmt":"2025-05-22T03:06:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/203585\/"},"modified":"2025-05-22T11:06:20","modified_gmt":"2025-05-22T03:06:20","slug":"java%e4%b8%ad%e6%9c%aa%e5%a3%b0%e6%98%8e%e6%8a%9b%e5%87%ba%e8%bf%90%e8%a1%8c%e6%97%b6%e5%bc%82%e5%b8%b8%ef%bc%8c%e8%af%a5%e5%a6%82%e4%bd%95%e5%a4%84%e7%90%86%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/203585\/","title":{"rendered":"Java\u4e2d\u672a\u58f0\u660e\u629b\u51fa\u8fd0\u884c\u65f6\u5f02\u5e38\uff0c\u8be5\u5982\u4f55\u5904\u7406\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

Java\u4e2d\u672a\u58f0\u660e\u629b\u51fa\u8fd0\u884c\u65f6\u5f02\u5e38\uff0c\u8be5\u5982\u4f55\u5904\u7406\uff1f<\/h1>\n

\u5bf9\u4e8e\u4e00\u4e2a\u6587\u7ae0\u5f00\u53d1\u8005\u6765\u8bf4\uff0c\u7262\u56fa\u624e\u5b9e\u7684\u57fa\u7840\u662f\u5341\u5206\u91cd\u8981\u7684\uff0c\u5c31\u6765\u5e26\u5927\u5bb6\u4e00\u70b9\u70b9\u7684\u638c\u63e1\u57fa\u7840\u77e5\u8bc6\u70b9\u3002\u4eca\u5929\u672c\u7bc7\u6587\u7ae0\u5e26\u5927\u5bb6\u4e86\u89e3\u300aJava\u4e2d\u672a\u58f0\u660e\u629b\u51fa\u8fd0\u884c\u65f6\u5f02\u5e38\uff0c\u8be5\u5982\u4f55\u5904\u7406\uff1f\u300b\uff0c\u4e3b\u8981\u4ecb\u7ecd\u4e86\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u5feb\u70b9\u6536\u85cf\u8d77\u6765\u5427\uff0c\u5426\u5219\u9700\u8981\u65f6\u5c31\u627e\u4e0d\u5230\u4e86\uff01<\/p>\n

<\/p>\n

java\u4e2d\u672a\u58f0\u660e\u629b\u51fa\u5f02\u5e38\u7684\u8fd0\u884c\u65f6\u5f02\u5e38\u5904\u7406<\/strong><\/p>\n

\u5728java\u4e2d\uff0c\u4e3b\u52a8\u629b\u51fa\u8fd0\u884c\u65f6\u5f02\u5e38\u53ef\u4ee5\u7ed5\u8fc7\u65b9\u6cd5\u7b7e\u540d\u5904\u7684throws\u58f0\u660e\u3002\u8fd9\u610f\u5473\u7740\u8c03\u7528\u65b9\u6cd5\u65f6\u4e0d\u5fc5\u5904\u7406\u5f02\u5e38\u3002\u90a3\u4e48\uff0c\u5f53\u8fd9\u6837\u7684\u65b9\u6cd5\u771f\u6b63\u629b\u51fa\u5f02\u5e38\u65f6\uff0c\u6700\u7ec8\u8c01\u6765\u5904\u7406\u5462\uff1f<\/p>\n

\u8bbe\u60f3\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n

public int gettotalpages(int rowsperpage) {\n    \/\/ ... \u4ee3\u7801\u7565 ...\n    catch (sqlexception e) {\n        e.printstacktrace();\n        throw new runtimeexception(e);\n    }\n}<\/pre>\n
\u65b9\u6cd5gettotalpages()\u5728\u629b\u51fasqlexception\u540e\uff0c\u53c8\u4e3b\u52a8\u629b\u51fa\u8fd0\u884c\u65f6\u5f02\u5e38\u3002\u5982\u679c\u8c03\u7528\u65b9\u6cd5\u65f6\u6ca1\u6709try\/catch\u6216throws\u58f0\u660e\uff0c\u90a3\u4e48\u5f02\u5e38\u7684\u5904\u7406\u5c06\u4ea4\u7ed9jvm\u3002<\/p>\n
\u5728main\u65b9\u6cd5\u4e2d\u8c03\u7528gettotalpages()\uff1a<\/p>\n
public static void main(String[] args) {\n    ProjectDAO pdao = new ProjectDAO();\n    pdao.getTotalPages(5);\n}<\/pre>\n
\u5982\u679cgettotalpages()\u629b\u51fa\u8fd0\u884c\u65f6\u5f02\u5e38\uff0cjvm\u5c06\u4f1a\u6355\u83b7\u5e76\u5904\u7406\u8be5\u5f02\u5e38\u3002\u901a\u5e38\u60c5\u51b5\u4e0b\uff0cjvm\u4f1a\u6253\u5370\u5f02\u5e38\u7684\u5806\u6808\u8ddf\u8e2a\u5e76\u7ec8\u6b62\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n
\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\uff0c\u6839\u636e\u4e1a\u52a1\u903b\u8f91\u51b3\u5b9a\u5982\u4f55\u5904\u7406\u672a\u58f0\u660e\u629b\u51fa\u7684\u8fd0\u884c\u65f6\u5f02\u5e38\u81f3\u5173\u91cd\u8981\u3002\u53ef\u4ee5\u8003\u8651\uff1a<\/p>\n
    \n
  • \u5403\u6389\u5f02\u5e38\uff1a<\/strong>\u5982\u679c\u5f02\u5e38\u4e0d\u4f1a\u5f71\u54cd\u4e1a\u52a1\u903b\u8f91\uff0c\u53ef\u4ee5\u8003\u8651\u5728\u4ee3\u7801\u4e2d\u6355\u83b7\u5e76\u5ffd\u7565\u5f02\u5e38\u3002<\/li>\n
  • \u7ec8\u6b62\u4e1a\u52a1\uff1a<\/strong>\u5982\u679c\u5f02\u5e38\u4e25\u91cd\uff0c\u65e0\u6cd5\u7ee7\u7eed\u4e1a\u52a1\u5904\u7406\uff0c\u5219\u5e94\u7ec8\u6b62\u5e94\u7528\u7a0b\u5e8f\u5e76\u901a\u77e5\u7528\u6237\u3002<\/li>\n<\/ul>\n
    \u8bb0\u4f4f\uff0c\u4e3b\u52a8\u629b\u51fa\u672a\u58f0\u660e\u7684\u8fd0\u884c\u65f6\u5f02\u5e38\u662f\u4e00\u79cd\u6709\u6548\u7684\u624b\u6bb5\uff0c\u4f46\u5fc5\u987b\u8c28\u614e\u4f7f\u7528\u3002\u5b83\u53ef\u4ee5\u7b80\u5316\u4ee3\u7801\u5e76\u51cf\u5c11\u6837\u677f\u4ee3\u7801\uff0c\u4f46\u9700\u8981\u4ed4\u7ec6\u8003\u8651\u5f02\u5e38\u5904\u7406\u7b56\u7565\uff0c\u4ee5\u786e\u4fdd\u5e94\u7528\u7a0b\u5e8f\u7684\u5065\u58ee\u6027\u3002<\/p>\n
    \u4ee5\u4e0a\u5c31\u662f\u300aJava\u4e2d\u672a\u58f0\u660e\u629b\u51fa\u8fd0\u884c\u65f6\u5f02\u5e38\uff0c\u8be5\u5982\u4f55\u5904\u7406\uff1f\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    Java\u4e2d\u672a\u58f0\u660e\u629b\u51fa\u8fd0\u884c\u65f6\u5f02\u5e38\uff0c...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-203585","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203585","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=203585"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203585\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=203585"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=203585"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=203585"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}