{"id":1877,"date":"2022-11-28T21:40:03","date_gmt":"2022-11-28T13:40:03","guid":{"rendered":"https:\/\/qaqaq.top\/?p=1877"},"modified":"2022-11-28T21:45:42","modified_gmt":"2022-11-28T13:45:42","slug":"druid%e6%95%b0%e6%8d%ae%e5%ba%93%e8%bf%9e%e6%8e%a5%e6%b1%a0%e6%8a%80%e6%9c%af%e7%9a%84%e5%ae%9e%e7%8e%b0","status":"publish","type":"post","link":"https:\/\/qaqaq.top\/?p=1877","title":{"rendered":"Druid\u6570\u636e\u5e93\u8fde\u63a5\u6c60\u6280\u672f\u7684\u5b9e\u73b0"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>package top.qaqaq.P50.connection;\n\nimport java.io.InputStream;\nimport java.sql.Connection;\nimport java.util.Properties;\n\nimport javax.sql.DataSource;\n\nimport org.junit.Test;\n\nimport com.alibaba.druid.pool.DruidDataSource;\nimport com.alibaba.druid.pool.DruidDataSourceFactory;\n\npublic class DruidTest {\n\n\t@Test\n\tpublic void getConnection() throws Exception {\n\t\tProperties pros = new Properties();\n\t\t\n\t\tInputStream is = ClassLoader.getSystemClassLoader().getResourceAsStream(\"druid.properties\");\n\t\t\n\t\tpros.load(is);\n\t\t\n\t\tDataSource source = DruidDataSourceFactory.createDataSource(pros);\n\t\tConnection conn = source.getConnection();\n\t\tSystem.out.println(conn);\n\t}\n}\n<\/code><\/pre>\n\n\n\n<p>druid.properties<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>url=jdbc:mysql:\/\/\/test\nusername=root\npassword=123456\ndriverClassName=com.mysql.cj.jdbc.Driver\n\ninitialSize=10\nmaxActive=10<\/code><\/pre>\n\n\n\n<p>Druid\u8be6\u7ec6\u914d\u7f6e\u53c2\u6570<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th><strong>\u914d\u7f6e<\/strong><\/th><th><strong>\u7f3a\u7701<\/strong><\/th><th><strong>\u8bf4\u660e<\/strong><\/th><\/tr><\/thead><tbody><tr><td>name<\/td><td><\/td><td>\u914d\u7f6e\u8fd9\u4e2a\u5c5e\u6027\u7684\u610f\u4e49\u5728\u4e8e\uff0c\u5982\u679c\u5b58\u5728\u591a\u4e2a\u6570\u636e\u6e90\uff0c\u76d1\u63a7\u7684\u65f6\u5019\u53ef\u4ee5\u901a\u8fc7\u540d\u5b57\u6765\u533a\u5206\u5f00\u6765\u3002 \u5982\u679c\u6ca1\u6709\u914d\u7f6e\uff0c\u5c06\u4f1a\u751f\u6210\u4e00\u4e2a\u540d\u5b57\uff0c\u683c\u5f0f\u662f\uff1a\u201dDataSource-\u201d + System.identityHashCode(this)<\/td><\/tr><tr><td>url<\/td><td><\/td><td>\u8fde\u63a5\u6570\u636e\u5e93\u7684url\uff0c\u4e0d\u540c\u6570\u636e\u5e93\u4e0d\u4e00\u6837\u3002\u4f8b\u5982\uff1amysql : jdbc:mysql:\/\/10.20.153.104:3306\/druid2 oracle : jdbc:oracle:thin:@10.20.149.85:1521:ocnauto<\/td><\/tr><tr><td>username<\/td><td><\/td><td>\u8fde\u63a5\u6570\u636e\u5e93\u7684\u7528\u6237\u540d<\/td><\/tr><tr><td>password<\/td><td><\/td><td>\u8fde\u63a5\u6570\u636e\u5e93\u7684\u5bc6\u7801\u3002\u5982\u679c\u4f60\u4e0d\u5e0c\u671b\u5bc6\u7801\u76f4\u63a5\u5199\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528ConfigFilter\u3002\u8be6\u7ec6\u770b\u8fd9\u91cc\uff1a<a href=\"https:\/\/github.com\/alibaba\/druid\/wiki\/%E4%BD%BF%E7%94%A8ConfigFilter\">https:\/\/github.com\/alibaba\/druid\/wiki\/\u4f7f\u7528ConfigFilter<\/a><\/td><\/tr><tr><td>driverClassName<\/td><td><\/td><td>\u6839\u636eurl\u81ea\u52a8\u8bc6\u522b \u8fd9\u4e00\u9879\u53ef\u914d\u53ef\u4e0d\u914d\uff0c\u5982\u679c\u4e0d\u914d\u7f6edruid\u4f1a\u6839\u636eurl\u81ea\u52a8\u8bc6\u522bdbType\uff0c\u7136\u540e\u9009\u62e9\u76f8\u5e94\u7684driverClassName(\u5efa\u8bae\u914d\u7f6e\u4e0b)<\/td><\/tr><tr><td>initialSize<\/td><td>0<\/td><td>\u521d\u59cb\u5316\u65f6\u5efa\u7acb\u7269\u7406\u8fde\u63a5\u7684\u4e2a\u6570\u3002\u521d\u59cb\u5316\u53d1\u751f\u5728\u663e\u793a\u8c03\u7528init\u65b9\u6cd5\uff0c\u6216\u8005\u7b2c\u4e00\u6b21getConnection\u65f6<\/td><\/tr><tr><td>maxActive<\/td><td>8<\/td><td>\u6700\u5927\u8fde\u63a5\u6c60\u6570\u91cf<\/td><\/tr><tr><td>maxIdle<\/td><td>8<\/td><td>\u5df2\u7ecf\u4e0d\u518d\u4f7f\u7528\uff0c\u914d\u7f6e\u4e86\u4e5f\u6ca1\u6548\u679c<\/td><\/tr><tr><td>minIdle<\/td><td><\/td><td>\u6700\u5c0f\u8fde\u63a5\u6c60\u6570\u91cf<\/td><\/tr><tr><td>maxWait<\/td><td><\/td><td>\u83b7\u53d6\u8fde\u63a5\u65f6\u6700\u5927\u7b49\u5f85\u65f6\u95f4\uff0c\u5355\u4f4d\u6beb\u79d2\u3002\u914d\u7f6e\u4e86maxWait\u4e4b\u540e\uff0c\u7f3a\u7701\u542f\u7528\u516c\u5e73\u9501\uff0c\u5e76\u53d1\u6548\u7387\u4f1a\u6709\u6240\u4e0b\u964d\uff0c\u5982\u679c\u9700\u8981\u53ef\u4ee5\u901a\u8fc7\u914d\u7f6euseUnfairLock\u5c5e\u6027\u4e3atrue\u4f7f\u7528\u975e\u516c\u5e73\u9501\u3002<\/td><\/tr><tr><td>poolPreparedStatements<\/td><td>false<\/td><td>\u662f\u5426\u7f13\u5b58preparedStatement\uff0c\u4e5f\u5c31\u662fPSCache\u3002PSCache\u5bf9\u652f\u6301\u6e38\u6807\u7684\u6570\u636e\u5e93\u6027\u80fd\u63d0\u5347\u5de8\u5927\uff0c\u6bd4\u5982\u8bf4oracle\u3002\u5728mysql\u4e0b\u5efa\u8bae\u5173\u95ed\u3002<\/td><\/tr><tr><td>maxOpenPreparedStatements<\/td><td>-1<\/td><td>\u8981\u542f\u7528PSCache\uff0c\u5fc5\u987b\u914d\u7f6e\u5927\u4e8e0\uff0c\u5f53\u5927\u4e8e0\u65f6\uff0cpoolPreparedStatements\u81ea\u52a8\u89e6\u53d1\u4fee\u6539\u4e3atrue\u3002\u5728Druid\u4e2d\uff0c\u4e0d\u4f1a\u5b58\u5728Oracle\u4e0bPSCache\u5360\u7528\u5185\u5b58\u8fc7\u591a\u7684\u95ee\u9898\uff0c\u53ef\u4ee5\u628a\u8fd9\u4e2a\u6570\u503c\u914d\u7f6e\u5927\u4e00\u4e9b\uff0c\u6bd4\u5982\u8bf4100<\/td><\/tr><tr><td>validationQuery<\/td><td><\/td><td>\u7528\u6765\u68c0\u6d4b\u8fde\u63a5\u662f\u5426\u6709\u6548\u7684sql\uff0c\u8981\u6c42\u662f\u4e00\u4e2a\u67e5\u8be2\u8bed\u53e5\u3002\u5982\u679cvalidationQuery\u4e3anull\uff0ctestOnBorrow\u3001testOnReturn\u3001testWhileIdle\u90fd\u4e0d\u4f1a\u5176\u4f5c\u7528\u3002<\/td><\/tr><tr><td>testOnBorrow<\/td><td>true<\/td><td>\u7533\u8bf7\u8fde\u63a5\u65f6\u6267\u884cvalidationQuery\u68c0\u6d4b\u8fde\u63a5\u662f\u5426\u6709\u6548\uff0c\u505a\u4e86\u8fd9\u4e2a\u914d\u7f6e\u4f1a\u964d\u4f4e\u6027\u80fd\u3002<\/td><\/tr><tr><td>testOnReturn<\/td><td>false<\/td><td>\u5f52\u8fd8\u8fde\u63a5\u65f6\u6267\u884cvalidationQuery\u68c0\u6d4b\u8fde\u63a5\u662f\u5426\u6709\u6548\uff0c\u505a\u4e86\u8fd9\u4e2a\u914d\u7f6e\u4f1a\u964d\u4f4e\u6027\u80fd<\/td><\/tr><tr><td>testWhileIdle<\/td><td>false<\/td><td>\u5efa\u8bae\u914d\u7f6e\u4e3atrue\uff0c\u4e0d\u5f71\u54cd\u6027\u80fd\uff0c\u5e76\u4e14\u4fdd\u8bc1\u5b89\u5168\u6027\u3002\u7533\u8bf7\u8fde\u63a5\u7684\u65f6\u5019\u68c0\u6d4b\uff0c\u5982\u679c\u7a7a\u95f2\u65f6\u95f4\u5927\u4e8etimeBetweenEvictionRunsMillis\uff0c\u6267\u884cvalidationQuery\u68c0\u6d4b\u8fde\u63a5\u662f\u5426\u6709\u6548\u3002<\/td><\/tr><tr><td>timeBetweenEvictionRunsMillis<\/td><td><\/td><td>\u6709\u4e24\u4e2a\u542b\u4e49\uff1a 1)Destroy\u7ebf\u7a0b\u4f1a\u68c0\u6d4b\u8fde\u63a5\u7684\u95f4\u9694\u65f6\u95f42)testWhileIdle\u7684\u5224\u65ad\u4f9d\u636e\uff0c\u8be6\u7ec6\u770btestWhileIdle\u5c5e\u6027\u7684\u8bf4\u660e<\/td><\/tr><tr><td>numTestsPerEvictionRun<\/td><td><\/td><td>\u4e0d\u518d\u4f7f\u7528\uff0c\u4e00\u4e2aDruidDataSource\u53ea\u652f\u6301\u4e00\u4e2aEvictionRun<\/td><\/tr><tr><td>minEvictableIdleTimeMillis<\/td><td><\/td><td><\/td><\/tr><tr><td>connectionInitSqls<\/td><td><\/td><td>\u7269\u7406\u8fde\u63a5\u521d\u59cb\u5316\u7684\u65f6\u5019\u6267\u884c\u7684sql<\/td><\/tr><tr><td>exceptionSorter<\/td><td><\/td><td>\u6839\u636edbType\u81ea\u52a8\u8bc6\u522b \u5f53\u6570\u636e\u5e93\u629b\u51fa\u4e00\u4e9b\u4e0d\u53ef\u6062\u590d\u7684\u5f02\u5e38\u65f6\uff0c\u629b\u5f03\u8fde\u63a5<\/td><\/tr><tr><td>filters<\/td><td><\/td><td>\u5c5e\u6027\u7c7b\u578b\u662f\u5b57\u7b26\u4e32\uff0c\u901a\u8fc7\u522b\u540d\u7684\u65b9\u5f0f\u914d\u7f6e\u6269\u5c55\u63d2\u4ef6\uff0c\u5e38\u7528\u7684\u63d2\u4ef6\u6709\uff1a \u76d1\u63a7\u7edf\u8ba1\u7528\u7684filter:stat\u65e5\u5fd7\u7528\u7684filter:log4j\u9632\u5fa1sql\u6ce8\u5165\u7684filter:wall<\/td><\/tr><tr><td>proxyFilters<\/td><td><\/td><td>\u7c7b\u578b\u662fList\uff0c\u5982\u679c\u540c\u65f6\u914d\u7f6e\u4e86filters\u548cproxyFilters\uff0c\u662f\u7ec4\u5408\u5173\u7cfb\uff0c\u5e76\u975e\u66ff\u6362\u5173\u7cfb<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>druid.properties Druid\u8be6\u7ec6\u914d\u7f6e\u53c2\u6570 \u914d\u7f6e \u7f3a\u7701 \u8bf4\u660e name \u914d\u7f6e\u8fd9\u4e2a\u5c5e\u6027\u7684\u610f\u4e49\u5728\u4e8e\uff0c [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[38],"tags":[48],"class_list":["post-1877","post","type-post","status-publish","format-standard","hentry","category-jdbc-code","tag-jdbc"],"_links":{"self":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/1877"}],"collection":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1877"}],"version-history":[{"count":3,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/1877\/revisions"}],"predecessor-version":[{"id":1884,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/1877\/revisions\/1884"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1877"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1877"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1877"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}