\u4f9d\u8d56\u6ce8\u5165\u7684\u53e6\u4e00\u79cd\u8bf4\u6cd5\u662f\u201c\u63a7\u5236\u53cd\u8f6c\u201d\uff0c\u901a\u4fd7\u7684\u7406\u89e3\u662f\uff1a\u5e73\u5e38\u6211\u4eecnew\u4e00\u4e2a\u5b9e\u4f8b\uff0c\u8fd9\u4e2a\u5b9e\u4f8b\u7684\u63a7\u5236\u6743\u662f\u6211\u4eec\u7a0b\u5e8f\u5458\uff0c\u800c\u63a7\u5236\u53cd\u8f6c\u662f\u6307new\u5b9e\u4f8b\u5de5\u4f5c\u4e0d\u7531\u6211\u4eec\u7a0b\u5e8f\u5458\u6765\u505a\u800c\u662f\u4ea4\u7ed9spring\u5bb9\u5668\u6765\u505a\u3002Spring\u901a\u8fc7DI\uff08\u4f9d\u8d56\u6ce8\u5165\uff09\u5b9e\u73b0IOC\uff08\u63a7\u5236\u53cd\u8f6c\uff09\uff0c\u5e38\u7528\u7684\u6ce8\u5165\u65b9\u5f0f\u4e3b\u8981\u6709\u4e09\u79cd\uff1a\u6784\u9020\u65b9\u6cd5\u6ce8\u5165\uff0cset\u65b9\u6cd5\u53c2\u6570\u6ce8\u5165\uff0c\u63a5\u53e3\u6ce8\u5165\u3002<\/p>\n

\u4e00.\u76ee\u524d\u4f7f\u7528\u6700\u5e7f\u6cdb\u7684 @Autowired\uff1a\u81ea\u52a8\u88c5\u914d<\/strong><\/div>\n
\u57fa\u4e8e@Autowired\u7684\u81ea\u52a8\u88c5\u914d\uff0c\u9ed8\u8ba4\u662f\u6839\u636e\u7c7b\u578b\u6ce8\u5165\uff0c\u53ef\u4ee5\u7528\u4e8e\u6784\u9020\u5668\u3001\u63a5\u53e3\u3001\u65b9\u6cd5\u6ce8\u5165\uff0c\u4f7f\u7528\u65b9\u5f0f\u5982\u4e0b\uff1a<\/p>\n
\r\n@Autowired\r\n\u6784\u9020\u65b9\u6cd5\u3001\u65b9\u6cd5\u3001\u63a5\u53e3\r\n<\/pre>\n
@Autowired\u9ed8\u8ba4\u662f\u6839\u636e\u53c2\u6570\u7c7b\u578b\u8fdb\u884c\u81ea\u52a8\u88c5\u914d\uff0c\u4e14\u5fc5\u987b\u6709\u4e00\u4e2aBean\u5019\u9009\u8005\u6ce8\u5165\u9ed8\u8ba4required=true\uff0c\u5982\u679c\u5141\u8bb8\u51fa\u73b00\u4e2aBean\u5019\u9009\u8005\u9700\u8981\u8bbe\u7f6e\u5c5e\u6027\u201crequired=false\u201d\uff0c\u201crequired\u201d\u5c5e\u6027\u542b\u4e49\u548c@Required\u4e00\u6837\uff0c\u53ea\u662f@Required\u53ea\u9002\u7528\u4e8e\u57fa\u4e8eXML\u914d\u7f6e\u7684setter\u6ce8\u5165\u65b9\u5f0f,\u53ea\u80fd\u6253\u5728setting\u65b9\u6cd5\u4e0a\u3002<\/p>\n
\u6784\u9020\u5668\u6ce8\u5165<\/strong><\/span><\/div>\n
\u901a\u8fc7\u5c06@Autowired\u6ce8\u89e3\u653e\u5728\u6784\u9020\u5668\u4e0a\u6765\u5b8c\u6210\u6784\u9020\u5668\u6ce8\u5165\uff0c\u9ed8\u8ba4\u6784\u9020\u5668\u53c2\u6570\u901a\u8fc7\u7c7b\u578b\u81ea\u52a8\u88c5\u914d\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
\r\n public class Test1 { \r\n private MessageInterface message; \r\n @Autowired \/\/\u6784\u9020\u5668\u6ce8\u5165 \r\n private Test1(MessageInterface message) { \r\n this.message = message; \r\n } \r\n \/\/\u7701\u7565getter\u548csetter \r\n } \r\n<\/pre>\n
\u63a5\u53e3\u6ce8\u5165<\/strong><\/span><\/div>\n
\u901a\u8fc7\u5c06@Autowired\u6ce8\u89e3\u653e\u5728\u6784\u9020\u5668\u4e0a\u6765\u5b8c\u6210\u63a5\u53e3\u6ce8\u5165\u3002<\/p>\n
\r\n public class Test2 { \r\n @Autowired \/\/\u63a5\u53e3\u6ce8\u5165 \r\n private MessageInterface messageInterface; \r\n \/\/\u7701\u7565getter\u548csetter \r\n} \r\n<\/pre>\n
\u65b9\u6cd5\u53c2\u6570\u6ce8\u5165<\/strong><\/span><\/div>\n
\u901a\u8fc7\u5c06@Autowired\u6ce8\u89e3\u653e\u5728\u65b9\u6cd5\u4e0a\u6765\u5b8c\u6210\u65b9\u6cd5\u53c2\u6570\u6ce8\u5165\u3002<\/p>\n
\r\n public class Test3 { \r\n private MessageInterface message; \r\n \r\n @Autowired \/\/setter\u65b9\u6cd5\u6ce8\u5165 \r\n public void setMessage(MessageInterface message) { \r\n this.message = message; \r\n } \r\n public String getMessage() { \r\n return message; \r\n } \r\n}\r\n public class Test4 { \r\n private MessageInterface message; \/\/\r\n private List list; \r\n @Autowired(required = true) \/\/\u4efb\u610f\u4e00\u4e2a\u6216\u591a\u4e2a\u53c2\u6570\u65b9\u6cd5\u6ce8\u5165 \r\n private void initMessage(MessageInterface message, ArrayList<\/string> list) { \r\n this.message = message; \r\n this.list = list; \r\n } \r\n \/\/\u7701\u7565getter\u548csetter \r\n} \r\n<\/string>\r\n\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"
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