{"id":64210,"date":"2025-05-03T11:34:42","date_gmt":"2025-05-03T03:34:42","guid":{"rendered":"https:\/\/fwq.ai\/blog\/64210\/"},"modified":"2025-05-03T11:34:42","modified_gmt":"2025-05-03T03:34:42","slug":"java%e5%af%b9%e8%b1%a1%e7%9a%84%e5%88%97%e5%80%bc%e6%80%8e%e4%b9%88%e5%8f%98%e6%95%b0%e7%bb%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/64210\/","title":{"rendered":"java\u5bf9\u8c61\u7684\u5217\u503c\u600e\u4e48\u53d8\u6570\u7ec4"},"content":{"rendered":"

\n java \u5bf9\u8c61\u4e2d\u7684\u5217\u503c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u8f6c\u6362\u4e3a\u6570\u7ec4\uff1a1. \u76f4\u63a5\u83b7\u53d6\u5217\u503c\u6570\u7ec4\uff1b2. \u4f7f\u7528 apache commons lang3 \u5e93\uff1b3. \u9010\u4e2a\u5143\u7d20\u8f6c\u6362\u3002\n<\/p><\/blockquote>\n

\"java\u5bf9\u8c61\u7684\u5217\u503c\u600e\u4e48\u53d8\u6570\u7ec4\u63d2\u56fe\"<\/p>\n

java\u5bf9\u8c61\u4e2d\u7684\u5217\u503c\u5982\u4f55\u8f6c\u6362\u4e3a\u6570\u7ec4<\/strong><\/p>\n

\u65b9\u6cd5\uff1a<\/strong><\/p>\n

1. \u76f4\u63a5\u83b7\u53d6\u5217\u503c\u6570\u7ec4<\/strong><\/p>\n

\u5982\u679c\u5217\u503c\u672c\u8eab\u5c31\u662f\u6570\u7ec4\u7c7b\u578b\uff0c\u53ef\u4ee5\u4f7f\u7528 java.lang.reflect.Array.get() \u65b9\u6cd5\u76f4\u63a5\u83b7\u53d6\u5176\u6570\u7ec4\u503c\u3002<\/p>\n

\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n

Class<?> clazz = Class.forName(\"com.example.MyClass\");\nObject myObject = clazz.newInstance();\nField field = clazz.getDeclaredField(\"myArray\");\nfield.setAccessible(true);\n\nObject[]myArray = (Object[]) field.get(myObject);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
2. \u4f7f\u7528 Apache Commons Lang3 \u5e93<\/strong><\/p>\n
Apache Commons Lang3 \u5e93\u63d0\u4f9b\u4e86 ArrayUtils.toObjectArray() \u65b9\u6cd5\uff0c\u53ef\u4ee5\u5c06\u5bf9\u8c61\u8f6c\u6362\u4e3a\u6570\u7ec4\u3002<\/p>\n
\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n
import org.apache.commons.lang3.ArrayUtils;\n\nObject[]myArray = ArrayUtils.toObjectArray(myObject);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
3. \u9010\u4e2a\u5143\u7d20\u8f6c\u6362<\/strong><\/p>\n
\u5982\u679c\u5217\u503c\u4e0d\u662f\u6570\u7ec4\u7c7b\u578b\uff0c\u4f46\u53ef\u4ee5\u8f6c\u6362\u4e3a\u6570\u7ec4\u7c7b\u578b\uff0c\u5219\u9700\u8981\u9010\u4e2a\u5143\u7d20\u8f6c\u6362\u4e3a\u6570\u7ec4\u3002<\/p>\n
\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n
List<Object> list = new ArrayList<>();\nfor (Object element : myObject) {\n    list.add(element);\n}\nObject[]myArray = list.toArray();<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6ce8\u610f\uff1a<\/strong><\/p>\n
    \n
  • \u4ee5\u4e0a\u65b9\u6cd5\u4ec5\u9002\u7528\u4e8e\u5217\u503c\u4e3a\u4e00\u7ef4\u6570\u7ec4\u7684\u60c5\u51b5\u3002<\/li>\n
  • \u5982\u679c\u5217\u503c\u4e3a\u591a\u7ef4\u6570\u7ec4\uff0c\u9700\u8981\u4f7f\u7528\u9012\u5f52\u6216\u5176\u4ed6\u66f4\u590d\u6742\u7684\u65b9\u6cd5\u8fdb\u884c\u8f6c\u6362\u3002<\/li>\n<\/ul>\n
    \u4ee5\u4e0a\u5c31\u662fjava\u5bf9\u8c61\u7684\u5217\u503c\u600e\u4e48\u53d8\u6570\u7ec4\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    java \u5bf9\u8c61\u4e2d\u7684\u5217\u503c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u8f6c\u6362\u4e3a\u6570\u7ec4\uff1a1. \u76f4\u63a5\u83b7\u53d6\u5217\u503c\u6570\u7ec4\uff1b2. \u4f7f\u7528 apache commons lang3 \u5e93\uff1b3. \u9010\u4e2a\u5143\u7d20\u8f6c\u6362\u3002 java\u5bf9\u8c61\u4e2d\u7684\u5217\u503c\u5982\u4f55\u8f6c\u6362\u4e3a\u6570\u7ec4 \u65b9\u6cd5\uff1a 1. \u76f4\u63a5\u83b7\u53d6\u5217\u503c\u6570\u7ec4 \u5982\u679c\u5217\u503c\u672c\u8eab\u5c31\u662f\u6570\u7ec4\u7c7b\u578b\uff0c\u53ef\u4ee5\u4f7f\u7528 java.lang.reflect.Array.get() \u65b9\u6cd5\u76f4\u63a5\u83b7\u53d6\u5176\u6570\u7ec4\u503c\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u4ee3\u7801\u793a\u4f8b\uff1a Class<?> clazz = Class.forName(“com.example.MyClass”); Object myObject = clazz.newInstance(); Field field = clazz.getDeclaredField(“myArray”); field.setAccessible(true); Object[]myArray = (Object[]) field.get(myObject); \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 Apache Commons Lang3 \u5e93 Apache Commons Lang3 \u5e93\u63d0\u4f9b\u4e86 ArrayUtils.toObjectArray() \u65b9\u6cd5\uff0c\u53ef\u4ee5\u5c06\u5bf9\u8c61\u8f6c\u6362\u4e3a\u6570\u7ec4\u3002 \u4ee3\u7801\u793a\u4f8b\uff1a import org.apache.commons.lang3.ArrayUtils; Object[]myArray = ArrayUtils.toObjectArray(myObject); \u767b\u5f55\u540e\u590d\u5236 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-64210","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64210","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=64210"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64210\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=64210"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=64210"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=64210"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}