\u5e73\u65f6\u7528spring\u7684\u65f6\u5019\uff0c\u914d\u7f6e\u7684\u503c\u591a\u6570\u60c5\u51b5\u90fd\u662f\u76f4\u63a5\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u6ce8\u5165\u7ed9\u7ba1\u7406\u7684\u7c7b\u4e86\uff0c\u6bd4\u5982\u6570\u636e\u5e93\u8fde\u63a5\u6c60\uff0c\u6570\u636e\u5e93\uff0c\u7f13\u5b58\u7b49\uff0c\u4e0d\u9700\u8981\u518d\u5728\u4ee3\u7801\u4e2d\u83b7\u53d6\u503c\u505a\u76f8\u5e94\u7684\u5904\u7406\u3002\u4eca\u5929\u9047\u5230\u8fd9\u79cd\u60c5\u51b5\uff0c\u9700\u8981\u5728\u4ee3\u7801\u4e2d\u5224\u65ad\u67d0\u4e2a\u503c\u662f\u5426\u4e3a\u7a7a\uff0c\u5982\u679c\u4e0d\u4e3a\u7a7a\u5219\u89e3\u6790\u5176\u503c\u5e76\u6839\u636e\u89e3\u6790\u7684\u503c\u7ed9HTTPclient\u52a0\u4e0a\u4ee3\u7406\uff0c\u5426\u5219\u5219\u4e0d\u52a0\u3002<\/p>\n
\u9996\u5148\u662f\u4f7f\u7528spring\u7684placeholder\u52a0\u8f7d\u6240\u6709\u7684properties\u6587\u4ef6<\/p>\n
\u7136\u540e\u662f\u5e38\u89c1\u7684\u7b2c\u4e00\u79cd\u6ce8\u5165\u914d\u7f6e\u503c\u7684\u65b9\u6cd5\uff1a<\/p>\n
\u4f7f\u7528\u914d\u7f6e\u6587\u4ef6\u7ba1\u7406\u9700\u8981\u6ce8\u5165\u7684\u5b9e\u4f8b\uff0c\u5728\u521d\u59cb\u5316\u5b9e\u4f8b\u7684\u65f6\u5019\uff0c\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u4f7f\u7528property\u53c2\u6570\u6ce8\u5165\u76f8\u5e94\u7684\u503c\uff0c\u5165
\n<bean id=”cacheManager” class=”cn.outofmemory.util.MemCacheManager” init-method=”init”>
\n<property name=”nodeList” value=”${memcache.nodelist}”\/>
\n<\/bean>
\n\u8fd9\u91cc\u7684${memcache.nodelist}\u5c31\u662fproperties\u6587\u4ef6\u4e2dkey\u503c\u4e3amemcache.nodelist\u7684\u914d\u7f6e\u503c\u3002
\n\u4f46\u662f\u8fd9\u6837\u505a\u4f1a\u6253\u4e71\u539f\u6709\u7684\u4f7f\u7528\u6ce8\u89e3\u7ba1\u7406bean\u7684\u5e03\u5c40\uff0c\u663e\u5f97\u6bd4\u8f83\u6df7\u4e71\uff0c\u800c\u4e14\u5982\u679c\u6539\u52a8\u7c7b\u8fd8\u9700\u8981\u540c\u65f6\u6539\u52a8spring\u7684\u914d\u7f6e\u6587\u4ef6\u3002<\/p>\n
\u7b2c\u4e8c\u79cd\uff1a
\n1\u3001\u5f15\u5165\u547d\u540d\u7a7a\u95f4\uff1a
\nxmlns:util=”http:\/\/www.springframework.org\/schema\/util”
\nxsi:schemaLocation=”http:\/\/www.springframework.org\/schema\/util
\nhttp:\/\/www.springframework.org\/schema\/util\/spring-util-3.0.xsd”
\n\u5185\u5bb9\u4e2d\u5199\u5165
\n<util:properties id=”propertiesReader” location=”classpath:test.properties” \/>
\n2\u3001\u5728\u7c7b\u4e2d\u9700\u8981\u6ce8\u5165\u7684\u5c5e\u6027\u5b9e\u73b0 setter \u548c getter \u65b9\u6cd5\u3002
\n3\u3001\u5728 setter \u65b9\u6cd5\u524d(\u6216\u8005\u8be5\u5c5e\u6027\u58f0\u660e\u4f4d\u7f6e)\uff0c\u6dfb\u52a0 @Value \u6ce8\u89e3
\n@Value(“#{propertiesReader[propertiesName]}”)
\npropertiesName \u4e3a properties \u6587\u4ef6\u4e2d\u7684\u952e\u3002\u8fd9\u6837\uff0c\u5728\u5bb9\u5668\u542f\u52a8\u8fc7\u7a0b\u4e2d\uff0c Spring \u5c06\u81ea\u52a8\u6ce8\u5165\u503c\u3002<\/p>\n
\u7b2c\u4e09\u79cd\uff1a
\n\u5b9e\u73b0\u4e00\u4e2a PropertyPlaceholderConfigurer \u6269\u5c55\u7684\u7c7b\uff0c\u5728\u8fd9\u4e2a\u7c7b\u4e2d\u91cd\u5199protected void processProperties\u65b9\u6cd5\uff0c\u5728\u65b9\u6cd5\u4f53\u4e2d\uff0c\u5c06\u4f20\u5165\u7684
\nProperties props\u7684\u503c\u5168\u90fd\u91cd\u65b0\u590d\u5236\u4e00\u4efd\u7ed9\u5f53\u524d\u65b9\u6cd5\u7684\u9759\u6001\u53d8\u91cf\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u8be5\u9759\u6001\u53d8\u91cf\u83b7\u53d6\u7cfb\u7edf\u52a0\u8f7d\u7684\u53c2\u6570\u4e86\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n
private static Map<String, String> ctxPropertiesMap;
\n@Override
\nprotected void processProperties(
\nConfigurableListableBeanFactory beanFactoryToProcess,
\nProperties props) throws BeansException {<\/p>\n
super.processProperties(beanFactoryToProcess, props);<\/p>\n
ctxPropertiesMap = new HashMap<String, String>();<\/p>\n
for (Object key : props.keySet()) {
\nString keyStr = key.toString();
\nString value = props.getProperty(keyStr);
\nctxPropertiesMap.put(keyStr, value);
\n}<\/p>\n
}
\npublic static String getContextProperty(String name) {
\nreturn ctxPropertiesMap.get(name);
\n}
\n\u7b2c\u56db\u79cd\uff1a
\n\u5f88\u7b80\u5355\uff0c\u53ea\u8981\u662f\u4f7f\u7528PropertyPlaceholderConfigurer\u6765\u7ba1\u7406\u52a0\u8f7d\u4e86\u6240\u6709\u7684\u914d\u7f6e\u6587\u4ef6\uff0c\u90a3\u4e48\u6211\u4eec\u5728\u67d0\u4e2aspring\u7ba1\u7406\u7684\u5b9e\u4f8b\u91cc\u7684\u5c5e\u6027\u4e0a\uff0c
\n\u5728\u67d0\u4e2aset\u65b9\u6cd5\u4e0a\u53ef\u4ee5\u7528@Value(“${db.driverclass}”)\u6765\u5b8c\u6210\u6ce8\u5165,\u4e5f\u53ef\u4ee5\u5728\u6210\u5458\u53d8\u91cf\u4e0a\u6ce8\u5165\u3002
\n\u4f8b\u5b50\uff1a
\n\u4f8b\u5b50\u4ee3\u7801\u5982\uff1a
\n@Service
\npublic class DatabaseInfo {
\n@Value(“${db.driverclass}”)\u2460
\nprivate String driverClass;
\n\/\/\u4e5f\u53ef\u4ee5\u5728\u8fd9\u91cc\u6ce8\u5165
\n@Value(“${db.driverclass}”)\u2461
\nprivate void setDriverClass(String dc) {
\nthis.driverClass = dc;
\n}
\n}
\n\u53c2\u8003\u6587\u732e
\n\u300ahttp:\/\/blog.csdn.net\/achilles12345\/article\/details\/38614387\u300b
\n\u300ahttp:\/\/jackyrong.iteye.com\/blog\/1330946\u300b<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5e73\u65f6\u7528spring\u7684\u65f6\u5019\uff0c\u914d\u7f6e\u7684\u503c\u591a\u6570\u60c5\u51b5\u90fd\u662f\u76f4\u63a5\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u6ce8\u5165\u7ed9\u7ba1\u7406\u7684\u7c7b\u4e86\uff0c\u6bd4\u5982\u6570\u636e\u5e93\u8fde\u63a5\u6c60\uff0c\u6570\u636e\u5e93\uff0c\u7f13\u5b58 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"aside","meta":{"footnotes":""},"categories":[89],"tags":[],"class_list":["post-591","post","type-post","status-publish","format-aside","hentry","category-89","post_format-post-format-aside"],"yoast_head":"\n