{"id":91070,"date":"2024-10-18T18:07:19","date_gmt":"2024-10-18T10:07:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/91070\/"},"modified":"2024-10-18T18:07:19","modified_gmt":"2024-10-18T10:07:19","slug":"ora-29557-java-%e7%b3%bb%e7%b5%b1%e9%a1%9e%e5%88%a5-string-%e4%b8%8d%e8%83%bd%e8%a2%ab%e4%bf%ae%e6%94%b9-oracle-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9-%e9%81%a0%e7%a8%8b%e8%99%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/91070\/","title":{"rendered":"ORA-29557: Java \u7cfb\u7d71\u985e\u5225 string \u4e0d\u80fd\u88ab\u4fee\u6539 ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"ora-29557-java-%e7%b3%bb%e7%b5%b1%e9%a1%9e%e5%88%a5-string-%e4%b8%8d%e8%83%bd%e8%a2%ab%e4%bf%ae%e6%94%b9-oracle-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9-%e9%81%a0%e7%a8%8b%e8%99%95-qYqNTGwFHQ\">ORA-29557: Java \u7cfb\u7d71\u985e\u5225 string \u4e0d\u80fd\u88ab\u4fee\u6539 ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406<\/h1>\n<p>\u5728\u4f7f\u7528 Oracle \u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u4fbf\u662f <code>ORA-29557<\/code>\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8207 Java \u7cfb\u7d71\u985e\u5225\u7684\u4f7f\u7528\u6709\u95dc\uff0c\u7279\u5225\u662f\u7576\u5617\u8a66\u4fee\u6539 Java \u7684\u5167\u5efa\u985e\u5225\u6642\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e <code>ORA-29557<\/code> \u932f\u8aa4\u7684\u539f\u56e0\u3001\u5f71\u97ff\u4ee5\u53ca\u5982\u4f55\u9032\u884c\u6545\u969c\u4fee\u5fa9\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e5%8e%9f%e5%9b%a0-qYqNTGwFHQ\">\u932f\u8aa4\u539f\u56e0<\/h2>\n<p><code>ORA-29557<\/code> \u932f\u8aa4\u7684\u4e3b\u8981\u539f\u56e0\u662f Oracle \u6578\u64da\u5eab\u4e2d\u7684 Java \u865b\u64ec\u6a5f\uff08JVM\uff09\u4e0d\u5141\u8a31\u5c0d\u67d0\u4e9b\u7cfb\u7d71\u985e\u5225\u9032\u884c\u4fee\u6539\u3002\u9019\u4e9b\u7cfb\u7d71\u985e\u5225\u5305\u62ec Java \u7684\u57fa\u672c\u985e\u578b\uff0c\u5982 <code>String<\/code>\u3002\u5728 Java \u4e2d\uff0c<code>String<\/code> \u985e\u662f\u4e0d\u53ef\u8b8a\u7684\uff0c\u9019\u610f\u5473\u8457\u4e00\u65e6\u5275\u5efa\uff0c\u8a72\u5c0d\u8c61\u7684\u5167\u5bb9\u5c31\u7121\u6cd5\u66f4\u6539\u3002<\/p>\n<p>\u7576\u958b\u767c\u8005\u5617\u8a66\u5c0d\u9019\u4e9b\u7cfb\u7d71\u985e\u5225\u9032\u884c\u4fee\u6539\u6642\uff0cOracle \u6578\u64da\u5eab\u6703\u8fd4\u56de <code>ORA-29557<\/code> \u932f\u8aa4\uff0c\u63d0\u793a\u7528\u6236\u7121\u6cd5\u9032\u884c\u6b64\u64cd\u4f5c\u3002\u9019\u901a\u5e38\u767c\u751f\u5728\u4ee5\u4e0b\u60c5\u6cc1\u4e0b\uff1a<\/p>\n<ul>\n<li>\u5617\u8a66\u4f7f\u7528\u4e0d\u6b63\u78ba\u7684 Java \u985e\u578b\u9032\u884c\u64cd\u4f5c\u3002<\/li>\n<li>\u5728 PL\/SQL \u4e2d\u8abf\u7528 Java \u65b9\u6cd5\u6642\uff0c\u50b3\u905e\u4e86\u4e0d\u6b63\u78ba\u7684\u53c3\u6578\u985e\u578b\u3002<\/li>\n<li>Java \u985e\u7684\u7248\u672c\u4e0d\u517c\u5bb9\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%bd%b1%e9%9f%bf%e7%af%84%e5%9c%8d-qYqNTGwFHQ\">\u5f71\u97ff\u7bc4\u570d<\/h2>\n<p>\u9019\u500b\u932f\u8aa4\u4e0d\u50c5\u6703\u5f71\u97ff\u55ae\u500b\u67e5\u8a62\u6216\u64cd\u4f5c\uff0c\u9084\u53ef\u80fd\u5c0e\u81f4\u6574\u500b\u61c9\u7528\u7a0b\u5e8f\u7684\u904b\u884c\u4e2d\u65b7\u3002\u7279\u5225\u662f\u5728\u5927\u578b\u4f01\u696d\u74b0\u5883\u4e2d\uff0c\u9019\u53ef\u80fd\u6703\u5f71\u97ff\u5230\u591a\u500b\u7528\u6236\u548c\u7cfb\u7d71\u7684\u6b63\u5e38\u904b\u884c\u3002\u56e0\u6b64\uff0c\u53ca\u6642\u8b58\u5225\u548c\u4fee\u5fa9\u6b64\u932f\u8aa4\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n<h2 id=\"%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9%e6%ad%a5%e9%a9%9f-qYqNTGwFHQ\">\u6545\u969c\u4fee\u5fa9\u6b65\u9a5f<\/h2>\n<p>\u8981\u4fee\u5fa9 <code>ORA-29557<\/code> \u932f\u8aa4\uff0c\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9a5f\u9032\u884c\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5-java-%e9%a1%9e%e5%9e%8b-qYqNTGwFHQ\">1. \u6aa2\u67e5 Java \u985e\u578b<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5\u60a8\u5728 PL\/SQL \u4e2d\u4f7f\u7528\u7684 Java \u985e\u578b\u662f\u5426\u6b63\u78ba\u3002\u78ba\u4fdd\u60a8\u50b3\u905e\u7684\u53c3\u6578\u985e\u578b\u8207 Java \u65b9\u6cd5\u7684\u5b9a\u7fa9\u76f8\u7b26\u3002<\/p>\n<h3 id=\"2-%e6%9b%b4%e6%96%b0-java-%e9%a1%9e-qYqNTGwFHQ\">2. \u66f4\u65b0 Java \u985e<\/h3>\n<p>\u5982\u679c\u60a8\u4f7f\u7528\u7684\u662f\u820a\u7248\u672c\u7684 Java \u985e\uff0c\u8003\u616e\u66f4\u65b0\u5230\u6700\u65b0\u7248\u672c\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b SQL \u547d\u4ee4\u4f86\u5b8c\u6210\uff1a<\/p>\n<pre><code>ALTER JAVA SOURCE \"your_java_class\" COMPILE;<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e6%ad%a3%e7%a2%ba%e7%9a%84-api-qYqNTGwFHQ\">3. \u4f7f\u7528\u6b63\u78ba\u7684 API<\/h3>\n<p>\u78ba\u4fdd\u60a8\u4f7f\u7528\u7684 API \u662f\u6b63\u78ba\u7684\uff0c\u4e26\u4e14\u4e0d\u6703\u5617\u8a66\u4fee\u6539\u4e0d\u53ef\u8b8a\u7684\u985e\u578b\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc <code>String<\/code> \u985e\uff0c\u61c9\u4f7f\u7528 <code>StringBuilder<\/code> \u6216 <code>StringBuffer<\/code> \u4f86\u9032\u884c\u5b57\u7b26\u4e32\u7684\u4fee\u6539\u3002<\/p>\n<h3 id=\"4-%e6%b8%ac%e8%a9%a6%e5%92%8c%e9%a9%97%e8%ad%89-qYqNTGwFHQ\">4. \u6e2c\u8a66\u548c\u9a57\u8b49<\/h3>\n<p>\u5728\u9032\u884c\u4efb\u4f55\u66f4\u6539\u5f8c\uff0c\u52d9\u5fc5\u9032\u884c\u6e2c\u8a66\u4ee5\u78ba\u4fdd\u554f\u984c\u5df2\u89e3\u6c7a\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u4f86\u6aa2\u67e5 Java \u985e\u7684\u72c0\u614b\uff1a<\/p>\n<pre><code>SELECT * FROM USER_JAVA_CLASSES WHERE NAME = 'your_java_class';<\/code><\/pre>\n<h2 id=\"%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86-qYqNTGwFHQ\">\u9060\u7a0b\u8655\u7406<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u60a8\u53ef\u80fd\u7121\u6cd5\u76f4\u63a5\u8a2a\u554f\u6578\u64da\u5eab\u9032\u884c\u6545\u969c\u6392\u9664\u3002\u9019\u6642\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u9060\u7a0b\u8655\u7406\u5de5\u5177\u4f86\u5354\u52a9\u89e3\u6c7a\u554f\u984c\u3002\u8a31\u591a\u73fe\u4ee3\u7684\u6578\u64da\u5eab\u7ba1\u7406\u5de5\u5177\u90fd\u63d0\u4f9b\u4e86\u9060\u7a0b\u9023\u63a5\u529f\u80fd\uff0c\u5141\u8a31\u60a8\u5728\u4e0d\u76f4\u63a5\u8a2a\u554f\u6578\u64da\u5eab\u7684\u60c5\u6cc1\u4e0b\u9032\u884c\u6545\u969c\u6392\u9664\u548c\u4fee\u5fa9\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-qYqNTGwFHQ\">\u7e3d\u7d50<\/h2>\n<p>\u7e3d\u4e4b\uff0c<code>ORA-29557<\/code> \u932f\u8aa4\u662f\u7531\u65bc\u5c0d Java \u7cfb\u7d71\u985e\u5225\u7684\u932f\u8aa4\u64cd\u4f5c\u5f15\u8d77\u7684\u3002\u901a\u904e\u6aa2\u67e5 Java \u985e\u578b\u3001\u66f4\u65b0 Java \u985e\u3001\u4f7f\u7528\u6b63\u78ba\u7684 API \u4ee5\u53ca\u9032\u884c\u6e2c\u8a66\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u5728\u8655\u7406\u6b64\u985e\u554f\u984c\u6642\uff0c\u9060\u7a0b\u8655\u7406\u5de5\u5177\u4e5f\u53ef\u4ee5\u63d0\u4f9b\u5f88\u5927\u7684\u5e6b\u52a9\u3002<\/p>\n<p>\u5982\u679c\u60a8\u9700\u8981\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u548c\u6578\u64da\u5eab\u7ba1\u7406\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u6e90\u548c\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a ORA-29557 \u932f\u8aa4\uff0c\u4fee\u5fa9 Java \u7cfb\u7d71\u985e\u5225 string \u4e0d\u80fd\u88ab\u4fee\u6539\u7684\u554f\u984c\uff0c\u63d0\u4f9b\u9060\u7a0b\u8655\u7406\u65b9\u6848\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u904b\u884c\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-91070","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/91070","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=91070"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/91070\/revisions"}],"predecessor-version":[{"id":91071,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/91070\/revisions\/91071"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=91070"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=91070"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=91070"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}