\u89c4\u5219\u5f15\u64ce\uff0c\u82f1\u6587\u540d\u4e3abusiness rules management system(BRMS\uff09\uff0c\u662f\u4e00\u79cd\u53ef\u4ee5\u5728\u5e94\u7528\u7cfb\u7edf\u4e2d\u5206\u79bb\u5546\u4e1a\u51b3\u7b56\u8005\u7684\u5546\u4e1a\u51b3\u7b56\u903b\u8f91\u548c\u5e94\u7528\u5f00\u53d1\u8005\u7684\u6280\u672f\u51b3\u7b56\uff0c\u5e76\u628a\u8fd9\u4e9b\u5546\u4e1a\u51b3\u7b56\u653e\u5728\u4e2d\u5fc3\u6570\u636e\u5e93\u6216\u5176\u4ed6\u7edf\u4e00\u7684\u5730\u65b9\uff0c\u8ba9\u5b83\u4eec\u80fd\u5728\u8fd0\u884c\u65f6\u53ef\u4ee5\u52a8\u6001\u5730\u7ba1\u7406\u548c\u4fee\u6539\u3002<\/p>\n\n\n\n
\u5728\u9700\u6c42\u91cc\u9762\u6211\u4eec\u5f80\u5f80\u628a\u7ea6\u675f\uff0c\u5b8c\u6574\u6027\uff0c\u6821\u9a8c\uff0c\u5206\u652f\u6d41\u7b49\u90fd\u53ef\u4ee5\u7b97\u5230\u4e1a\u52a1\u89c4\u5219\u91cc\u9762\u3002\u5728\u89c4\u5219\u5f15\u64ce\u91cc\u9762\u8c08\u7684\u4e1a\u52a1\u89c4\u5219\u91cd\u70b9\u662f\u8c08\u5f53\u6ee1\u8db3\u4ec0\u4e48\u6837\u7684\u6761\u4ef6\u7684\u65f6\u5019\uff0c\u9700\u8981\u6267\u884c\u4ec0\u4e48\u6837\u7684\u64cd\u4f5c\u3002\u56e0\u6b64\u4e00\u4e2a\u5b8c\u6574\u7684\u4e1a\u52a1\u89c4\u5219\u5305\u62ec\u4e86\u6761\u4ef6\u548c\u89e6\u53d1\u64cd\u4f5c\u4e24\u90e8\u5206\u5185\u5bb9\u3002\u800c\u5f15\u64ce\u662f\u4e8b\u7269\u5185\u90e8\u7684\u91cd\u8981\u7684\u8fd0\u884c\u673a\u5236\uff0c\u89c4\u5219\u5f15\u64ce\u5373\u91cd\u70b9\u662f\u89e3\u51b3\u89c4\u5219\u5982\u4f55\u63cf\u8ff0\uff0c\u5982\u4f55\u6267\u884c\uff0c\u5982\u4f55\u76d1\u63a7\u7b49\u4e00\u7cfb\u5217\u95ee\u9898\u3002<\/p>\n\n\n\n
\u89c4\u5219\u5f15\u64ce\u7531\u63a8\u7406\u5f15\u64ce\u53d1\u5c55\u800c\u6765\uff0c\u662f\u4e00\u79cd\u5d4c\u5165\u5728\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u7ec4\u4ef6\uff0c\u5b9e\u73b0\u4e86\u5c06\u4e1a\u52a1\u51b3\u7b56\u4ece\u5e94\u7528\u7a0b\u5e8f\u4ee3\u7801\u4e2d\u5206\u79bb\u51fa\u6765\uff0c\u5e76\u4f7f\u7528\u9884\u5b9a\u4e49\u7684\u8bed\u4e49\u6a21\u5757\u7f16\u5199\u4e1a\u52a1\u51b3\u7b56\u3002\u63a5\u53d7\u6570\u636e\u8f93\u5165\uff0c\u89e3\u91ca\u4e1a\u52a1\u89c4\u5219\uff0c\u5e76\u6839\u636e\u4e1a\u52a1\u89c4\u5219\u505a\u51fa\u4e1a\u52a1\u51b3\u7b56\u3002<\/p>\n\n\n\n
java\u5f00\u6e90\u7684\u89c4\u5219\u5f15\u64ce\u6709\uff1aDrools\u3001Easy Rules\u3001Mandarax\u3001IBM ILOG\u3002\u4f7f\u7528\u6700\u4e3a\u5e7f\u6cdb\u5e76\u4e14\u5f00\u6e90\u7684\u662fDrools\u3002<\/p>\n\n\n\n
Drools \u662f\u7528Java\u8bed\u8a00\u7f16\u5199\u7684\u5f00\u653e\u6e90\u7801\u89c4\u5219\u5f15\u64ce\uff0c\u4f7f\u7528Rete\u7b97\u6cd5\u5bf9\u6240\u7f16\u5199\u7684\u89c4\u5219\u6c42\u503c\u3002Drools\u5141\u8bb8\u4f7f\u7528\u58f0\u660e\u65b9\u5f0f\u8868\u8fbe\u4e1a\u52a1\u903b\u8f91\u3002\u53ef\u4ee5\u4f7f\u7528\u975eXML\u7684\u672c\u5730\u8bed\u8a00\u7f16\u5199\u89c4\u5219\uff0c\u4ece\u800c\u4fbf\u4e8e\u5b66\u4e60\u548c\u7406\u89e3\u3002<\/p>\n\n\n\n
\u4e00\u4e2a\u89c4\u5219\u53ef\u4ee5\u5305\u542b\u4e09\u4e2a\u90e8\u5206\uff1a<\/p>\n\n\n\n
\u89c4\u5219\u793a\u4f8b\uff1a<\/p>\n\n\n\n
rule \"name\"\n no-loop true\n lock-on-active true\n when\n $message:Message(status == 0)\n then\n System.out.println(\"fit\");\n $message.setStatus(1);\n update($message);\nend<\/code><\/pre>\n\n\n\npackage\uff1a \u4e0eJava\u8bed\u8a00\u7c7b\u4f3c\uff0cdrl\u7684\u5934\u90e8\u9700\u8981\u6709package\u548cimport\u7684\u58f0\u660e\uff0cpackage\u4e0d\u5fc5\u548c\u7269\u7406\u8def\u5f84\u4e00\u81f4\uff0c\u8fd9\u91cc\u53ea\u662f\u4e00\u4e2a\u903b\u8f91\u533a\u5206\u3002<\/p>\n\n\n\n
import\uff1a \u5bfc\u5165java Bean\u7684\u5b8c\u6574\u8def\u5f84\uff0c\u4e5f\u53ef\u4ee5\u5c06Java\u9759\u6001\u65b9\u6cd5\u5bfc\u5165\u8c03\u7528\u3002 rule\uff1a \u89c4\u5219\u540d\u79f0\uff0c\u9700\u8981\u4fdd\u6301\u552f\u4e00 \u3002<\/p>\n\n\n\n
no-loop\uff1a \u5b9a\u4e49\u5f53\u524d\u7684\u89c4\u5219\u662f\u5426\u5141\u8bb8\u591a\u6b21\u5faa\u73af\u6267\u884c\uff0c\u9ed8\u8ba4\u662f false\u5141\u8bb8\u5faa\u73af\u6267\u884c\uff0c\u4e5f\u5c31\u662f\u5f53\u524d\u7684\u89c4\u5219\u53ea\u8981\u6ee1\u8db3\u6761\u4ef6,\u53ef\u4ee5\u65e0\u9650\u6b21\u6267\u884c\u3002\u5728\u5bf9\u5f53\u524d\u4f20\u5165workingMemory\u4e2d\u7684Fact\u5bf9\u8c61\u8fdb\u884c\u4fee\u6539\u6216\u8005\u4e2a\u6570\u7684\u589e\u51cf\uff0c\u6bd4\u5982update\u65b9\u6cd5\uff0c\u8fd9\u79cd\u64cd\u4f5c\u4f1a\u89e6\u53d1\u89c4\u5219\u7684\u91cd\u65b0\u5339\u914d\u6267\u884c\u3002\u5982\u679c\u662ftrue\uff0c\u5219\u89c4\u5219\u53ea\u6267\u884c\u4e00\u6b21\uff0c\u5982\u679c\u672c\u8eab\u7684RHS\u90e8\u5206\u6709update\u7b49\u89e6\u53d1\u89c4\u5219\u91cd\u65b0\u6267\u884c\u7684\u64cd\u4f5c\uff0c\u4e5f\u4e0d\u4f1a\u518d\u6b21\u6267\u884c\u5f53\u524d\u89c4\u5219\u3002<\/p>\n\n\n\n
lock-on-active\uff1a \u5c06lock-on-active\u5c5e\u6027\u7684\u503c\u8bbe\u7f6e\u4e3atrue,\u53ef\u907f\u514d\u56e0\u67d0\u4e9bFact\u5bf9\u8c61\u88ab\u4fee\u6539\u800c\u4f7f\u5df2\u7ecf\u6267\u884c\u8fc7\u7684\u89c4\u5219\u518d\u6b21\u88ab\u6fc0\u6d3b\u6267\u884c\u3002\u56e0\u4e3a\u4e00\u4e2a\u89c4\u5219\u7684\u91cd\u590d\u6267\u884c\u4e0d\u4e00\u5b9a\u662f\u672c\u8eab\u89e6\u53d1\u7684\uff0c\u4e5f\u53ef\u80fd\u662f\u5176\u4ed6\u89c4\u5219\u89e6\u53d1\u7684\uff0c\u6240\u4ee5\u8fd9\u4e2a\u662fno-loop\u7684\u52a0\u5f3a\u7248\u3002 <\/p>\n\n\n\n
date-expires\uff1a\u8bbe\u7f6e\u89c4\u5219\u7684\u8fc7\u671f\u65f6\u95f4\uff0c\u9ed8\u8ba4\u7684\u65f6\u95f4\u683c\u5f0f\uff1a\u201c\u65e5-\u6708-\u5e74\u201d\uff0c\u4e2d\u82f1\u6587\u683c\u5f0f\u76f8\u540c\uff0c\u4f46\u662f\u5199\u6cd5\u8981\u7528\u5404\u81ea\u5bf9\u5e94\u7684\u8bed\u8a00\uff0c\u6bd4\u5982\u4e2d\u6587\uff1a”29-\u4e03\u6708-2010″\uff0c\u4f46\u662f\u8fd8\u662f\u63a8\u8350\u4f7f\u7528\u66f4\u4e3a\u7cbe\u786e\u548c\u4e60\u60ef\u7684\u683c\u5f0f\uff0c\u8fd9\u9700\u8981\u624b\u52a8\u5728java\u4ee3\u7801\u4e2d\u8bbe\u7f6e\u5f53\u524d\u7cfb\u7edf\u7684\u65f6\u95f4\u683c\u5f0f\uff0c\u540e\u7eed\u63d0\u53ca\u3002 <\/p>\n\n\n\n
date-effective\uff1a\u8bbe\u7f6e\u89c4\u5219\u7684\u751f\u6548\u65f6\u95f4\uff0c\u65f6\u95f4\u683c\u5f0f\u540c\u4e0a\u3002 <\/p>\n\n\n\n
duration\uff1a\u89c4\u5219\u5b9a\u65f6\uff0cduration 3000 \uff0c3\u79d2\u540e\u6267\u884c\u89c4\u5219 <\/p>\n\n\n\n
salience\uff1a \u7528\u6765\u8bbe\u7f6e\u89c4\u5219\u6267\u884c\u7684\u4f18\u5148\u7ea7,salience \u5c5e\u6027\u7684\u503c\u662f\u4e00\u4e2a\u6570\u5b57,\u6570\u5b57\u8d8a\u5927\u6267\u884c\u4f18\u5148\u7ea7\u8d8a\u9ad8, \u540c\u65f6\u5b83\u7684\u503c\u53ef\u4ee5\u662f\u4e00\u4e2a\u8d1f\u6570\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b,\u89c4\u5219\u7684 salience \u9ed8\u8ba4\u503c\u4e3a 0\u3002\u5982\u679c\u4e0d\u8bbe\u7f6e\u89c4\u5219\u7684 salience \u5c5e\u6027,\u90a3\u4e48\u6267\u884c\u987a\u5e8f\u662f\u968f\u673a\u7684\u3002 <\/p>\n\n\n\n
when\uff1a \u6761\u4ef6\u8bed\u53e5\uff0c\u5c31\u662f\u5f53\u5230\u8fbe\u4ec0\u4e48\u6761\u4ef6\u7684\u65f6\u5019\u6267\u884c <\/p>\n\n\n\n
then\uff1a \u6839\u636e\u6761\u4ef6\u7684\u7ed3\u679c\uff0c\u6765\u6267\u884c\u4ec0\u4e48\u52a8\u4f5c<\/p>\n\n\n\n
end\uff1a \u89c4\u5219\u7ed3\u675f<\/p>\n\n\n\n
\u89c4\u5219\u7684\u6761\u4ef6\u90e8\u5206\uff0c\u5373LHS\u90e8\u5206<\/h2>\n\n\n\n
<\/em><\/p>\n\n\n\nwhen\n eval(true)\n $customer:Customer()\n $message:Message(status==0)\n<\/code><\/pre>\n\n\n\n\u4e0a\u8ff0\u7f57\u5217\u4e86\u4e09\u4e2a\u6761\u4ef6\uff0c\u5f53\u524d\u89c4\u5219\u53ea\u6709\u5728\u8fd9\u4e09\u4e2a\u6761\u4ef6\u90fd\u5339\u914d\u7684\u65f6\u5019\u624d\u4f1a\u6267\u884cRHS\u90e8\u5206\u3002<\/p>\n\n\n\n
- eval(true)\uff1a\u662f\u4e00\u4e2a\u9ed8\u8ba4\u7684api\uff0ctrue \u65e0\u6761\u4ef6\u6267\u884c\uff0c\u7c7b\u4f3c\u4e8e while(true)<\/li>
- $customer:Customer()\uff1a\u8868\u793a\u5f53\u524d\u7684workingMemory\u5b58\u5728Customer\u7c7b<\/li>
- $message:Message(status==0) \u8fd9\u53e5\u8bdd\u6807\u793a\u7684\uff1a\u5f53\u524d\u7684workingMemory\u5b58\u5728Message\u7c7b\u578b\u5e76\u4e14status\u5c5e\u6027\u7684\u503c\u4e3a0\u7684Fact\u5bf9\u8c61\uff0c\u8fd9\u4e2a\u5bf9\u8c61\u901a\u5e38\u662f\u901a\u8fc7\u5916\u90e8java\u4ee3\u7801\u63d2\u5165\u6216\u8005\u81ea\u5df1\u5728\u524d\u9762\u5df2\u7ecf\u6267\u884c\u7684\u89c4\u5219\u7684RHS\u90e8\u5206\u4e2dinsert\u8fdb\u53bb\u7684\u3002<\/li><\/ul>\n\n\n\n
Drools\u4e2d\u6761\u4ef6\u64cd\u4f5c\u7b26<\/h3>\n\n\n\n
Drools\u63d0\u4f9b\u4e86\u5341\u4e8c\u4e2d\u7c7b\u578b\u6bd4\u8f83\u64cd\u4f5c\u7b26\uff1a< \u3001<=\u3001>\u3001>=\u3001==\u3001!=\u3001contains\u3001not contains\u3001memberOf\u3001not memberOf\u3001matches\u3001not matches\uff0c\u5e76\u4e14\u8fd9\u4e9b\u6761\u4ef6\u90fd\u53ef\u4ee5\u7ec4\u5408\u4f7f\u7528\u3002<\/em><\/p>\n\n\n\n $order:Order(name==\"qu\")\n $message:Message((status==0 || (status > 1 && status <=100)) && orders contains $order && $order.name==\"qu\")\n<\/code><\/pre>\n\n\n\n- \u6761\u4ef6\u7ec4\u5408\uff1aMessage(status==0 || (status > 1 && status <=100))<\/li>
- Fact\u5bf9\u8c61private\u5c5e\u6027\u7684\u64cd\u4f5c\uff1aRHS\u4e2d\u5bf9Fact\u5bf9\u8c61private\u5c5e\u6027\u7684\u64cd\u4f5c\u5fc5\u987b\u4f7f\u7528getter\u548csetter\u65b9\u6cd5\uff0c\u800cRHS\u4e2d\u5219\u5fc5\u987b\u8981\u76f4\u63a5\u7528.\u7684\u65b9\u6cd5\u53bb\u4f7f\u7528\uff0c\u6bd4\u5982\uff1a$order.name==”qu”<\/li>
- contains\uff1a\u5bf9\u6bd4\u662f\u5426\u5305\u542b\u64cd\u4f5c\uff0c\u64cd\u4f5c\u7684\u88ab\u5305\u542b\u76ee\u6807\u53ef\u4ee5\u662f\u4e00\u4e2a\u590d\u6742\u5bf9\u8c61\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u503c\u3002 $message:Message(status==0 && names contains “\u7f51\u6613” && names.size >= 1)\u3002\u4e0a\u8ff0\u7684\u6761\u4ef6\u4e2d\uff0cstatus\u5fc5\u987b\u662f0\uff0c\u5e76\u4e14names\u5217\u8868\u4e2d\u542b\u6709\u201c\u7f51\u6613\u201d\u5e76\u4e14\u5217\u8868\u957f\u5ea6\u5927\u4e8e\u7b49\u4e8e1\uff08names\u662f\u4e00\u4e2aList\uff09\u3002<\/li>
- matches\uff1a\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\uff0c\u4e0ejava\u4e0d\u540c\u7684\u662f\uff0c\u4e0d\u7528\u8003\u8651’\/’\u7684\u8f6c\u4e49\u95ee\u9898<\/li>
- memberOf\uff1a\u5224\u65ad\u67d0\u4e2aFact\u5c5e\u6027\u503c\u662f\u5426\u5728\u67d0\u4e2a\u96c6\u5408\u4e2d\uff0c\u4e0econtains\u4e0d\u540c\u7684\u662f\u4ed6\u88ab\u6bd4\u8f83\u7684\u5bf9\u8c61\u662f\u4e00\u4e2a\u96c6\u5408\uff0c\u800ccontains\u88ab\u6bd4\u8f83\u7684\u5bf9\u8c61\u662f\u5355\u4e2a\u503c\u6216\u8005\u5bf9\u8c61\u3002<\/li><\/ul>\n\n\n\n
\u6ce8\u610f\uff1a\u5982\u679c\u6761\u4ef6\u5168\u90e8\u662f &&\u5173\u7cfb\uff0c\u53ef\u4ee5\u4f7f\u7528\u201c,\u201d\u6765\u66ff\u4ee3\uff0c\u4f46\u662f\u4e24\u8005\u4e0d\u80fd\u6df7\u7528<\/strong><\/p>\n\n\n\n\u89c4\u5219\u7684\u7ed3\u679c\u90e8\u5206<\/h2>\n\n\n\n
\u5f53\u89c4\u5219\u6761\u4ef6\u6ee1\u8db3\uff0c\u5219\u8fdb\u5165\u89c4\u5219\u7ed3\u679c\u90e8\u5206\u6267\u884c\uff0c\u7ed3\u679c\u90e8\u5206\u53ef\u4ee5\u662f\u7eafjava\u4ee3\u7801\uff0c\u6bd4\u5982\uff1a<\/em><\/p>\n\n\n\nthen\n System.out.println(\"OK\"); \/\/\u4f1a\u5728\u63a7\u5236\u53f0\u6253\u5370\u51faok\nend\n<\/code><\/pre>\n\n\n\n- insert\uff1a\u5f80\u5f53\u524dworkingMemory\u4e2d\u63d2\u5165\u4e00\u4e2a\u65b0\u7684Fact\u5bf9\u8c61\uff0c\u4f1a\u89e6\u53d1\u89c4\u5219\u7684\u518d\u6b21\u6267\u884c\uff0c\u9664\u975e\u4f7f\u7528no-loop\u9650\u5b9a\uff1b<\/li>
- update\uff1a\u66f4\u65b0<\/li>
- modify\uff1a\u4fee\u6539\uff0c\u4e0eupdate\u8bed\u6cd5\u4e0d\u540c\uff0c\u7ed3\u679c\u90fd\u662f\u66f4\u65b0\u64cd\u4f5c<\/li>
- retract\uff1a\u5220\u9664<\/li>
- function\uff1a\u5b9a\u4e49\u4e00\u4e2a\u65b9\u6cd5\uff0c\u5982\uff1a<\/li><\/ul>\n\n\n\n
<\/em><\/p>\n\n\n\nfunction void console {\n System.out.println();\n StringUtils.getId();\/\/ \u8c03\u7528\u5916\u90e8\u9759\u6001\u65b9\u6cd5\uff0cStringUtils\u5fc5\u987b\u4f7f\u7528import\u5bfc\u5165\uff0cgetId()\u5fc5\u987b\u662f\u9759\u6001\u65b9\u6cd5\n}\n<\/code><\/pre>\n\n\n\n- declare\uff1a\u53ef\u4ee5\u5728\u89c4\u5219\u6587\u4ef6\u4e2d\u5b9a\u4e49\u4e00\u4e2aclass\uff0c\u4f7f\u7528\u8d77\u6765\u8ddf\u666e\u901ajava\u5bf9\u8c61\u76f8\u4f3c\uff0c\u4f60\u53ef\u4ee5\u5728RHS\u90e8\u5206\u4e2dnew\u4e00\u4e2a\u5e76\u4e14\u4f7f\u7528getter\u548csetter\u65b9\u6cd5\u53bb\u64cd\u4f5c\u5176\u5c5e\u6027\u3002<\/li><\/ul>\n\n\n\n
<\/em><\/p>\n\n\n\ndeclare Address\n @author(quzishen) \/\/ \u5143\u6570\u636e\uff0c\u4ec5\u7528\u4e8e\u63cf\u8ff0\u4fe1\u606f\n @createTime(2011-1-24)\n city : String @maxLengh(100)\n postno : int\nend\n<\/code><\/pre>\n\n\n\n‘@’\u662f\u5143\u6570\u636e\u5b9a\u4e49\uff0c\u7528\u4e8e\u63cf\u8ff0\u6570\u636e\u7684\u6570\u636e~\uff0c\u6ca1\u4ec0\u4e48\u6267\u884c\u542b\u4e49\u3002
\u4f60\u53ef\u4ee5\u5728RHS\u90e8\u5206\u4e2d\u4f7f\u7528Address address = new Address()\u7684\u65b9\u6cd5\u6765\u5b9a\u4e49\u4e00\u4e2a\u5bf9\u8c61\u3002<\/p>\n\n\n\n
\u66f4\u591a\u7684\u89c4\u5219\u8bed\u6cd5\uff0c\u53ef\u4ee5\u53c2\u8003\u5176\u4ed6\u4e92\u8054\u7f51\u8d44\u6599\uff0c\u63a8\u8350\uff1a
http:\/\/wenku.baidu.com\/view\/a6516373f242336c1eb95e7c.html<\/a><\/p>\n\n\n\npom\u4e2d\u52a0\u5165\u4f9d\u8d56<\/h1>\n\n\n\n
<\/em><\/p>\n\n\n\n<!-- Drools\u89c4\u5219\u5f15\u64ce\u5305 start -->\n<dependency>\n <groupId>org.kie<\/groupId>\n <artifactId>kie-api<\/artifactId>\n <version>6.5.0.Final<\/version>\n<\/dependency>\n<dependency>\n <groupId>org.drools<\/groupId>\n <artifactId>drools-compiler<\/artifactId>\n <version>6.5.0.Final<\/version>\n<\/dependency>\n<!-- Drools\u89c4\u5219\u5f15\u64ce\u5305 end -->\n<\/code><\/pre>\n\n\n\n\u6848\u4f8b<\/h1>\n\n\n\n
\u4e0b\u9762\u662f\u4e00\u4e2a\u589e\u52a0\u79ef\u5206\u7684\u5217\u5b50\uff0c\u4e3b\u8981\u5b9e\u73b0\u7528\u6237\u8d2d\u4e70\u7684\u91d1\u989d\u8fbe\u5230\u4e00\u5b9a\u91cf\u540e\u9001\u79ef\u5206\uff0c\u5177\u4f53\u7684\u89c4\u5219\u5982\u4e0b:<\/em><\/p>\n\n\n\n100\u5143\u4ee5\u4e0b, \u4e0d\u52a0\u5206 \n100\u5143-500\u5143 \u52a0100\u5206 \n500\u5143-1000\u5143 \u52a0500\u5206 \n1000\u5143 \u4ee5\u4e0a \u52a01000\u5206\n<\/code><\/pre>\n\n\n\n\u6709\u4e24\u79cd\u5b9e\u73b0\u65b9\u6848\uff0c\u4e00\u79cd\u662f\u89c4\u5219\u76f4\u63a5\u5199\u5728\u6587\u4ef6\u4e2d\uff0c\u4e00\u79cd\u662f\u89c4\u5219\u5199\u5728\u6570\u636e\u5e93\u4e2d\u3002<\/p>\n\n\n\n
\u89c4\u5219\u5199\u5728\u6587\u4ef6\u4e2d<\/h2>\n\n\n\nPoint.drl \u6587\u4ef6<\/h3>\n\n\n\n
\u5728src\/main\/resources\u76ee\u5f55\u4e0b\u65b0\u5efarules.point\u6587\u4ef6\u5939\uff0c\u65b0\u5efaPoint.drl\u6587\u4ef6<\/em><\/p>\n\n\n\n\/\/\u8fd9\u91cc\u7684package\u5c5e\u6027\u662f\u4e00\u4e2a\u903b\u8f91\u533a\u5206\uff0c\u4e0d\u9700\u8981\u4e0e\u8fd9\u4e2a\u6587\u4ef6\u8def\u5f84\u76f8\u5bf9\u5e94\npackage point.rules\n\nimport com.xiaolyuh.domain.model.Order\n\nrule \"zero\"\n no-loop true\n lock-on-active true\n salience 1\n when\n $s : Order(amout <= 100)\n then\n $s.setScore(0);\n System.out.println(\"\u4e0d\u52a0\u79ef\u5206\");\n update($s);\nend\n\nrule \"add100\"\n no-loop true\n lock-on-active true\n salience 1\n when\n $s : Order(amout > 100 && amout <= 500)\n then\n $s.setScore(100);\n System.out.println(\"\u52a0100\u79ef\u5206\");\n update($s);\nend\n\nrule \"add500\"\n no-loop true\n lock-on-active true\n salience 1\n when\n $s : Order(amout > 500 && amout <= 1000)\n then\n $s.setScore(500);\n System.out.println(\"\u52a0500\u79ef\u5206\");\n update($s);\nend\n\nrule \"add1000\"\n no-loop true\n lock-on-active true\n salience 1\n when\n $s : Order(amout > 1000)\n then\n $s.setScore(1000);\n System.out.println(\"\u52a0500\u79ef\u5206\");\n update($s);\nend\n<\/code><\/pre>\n\n\n\nkmodule.xml<\/h3>\n\n\n\n
\u8fd9\u91cc\u9700\u8981\u6709\u4e00\u4e2a\u914d\u7f6e\u6587\u4ef6\u544a\u8bc9\u4ee3\u7801\u89c4\u5219\u6587\u4ef6drl\u5728\u54ea\u91cc\uff0c\u5728drools\u4e2d\u8fd9\u4e2a\u6587\u4ef6\u5c31\u662fkmodule.xml\uff0c\u653e\u7f6e\u5230resources\/META-INF\u76ee\u5f55\u4e0b\uff0c\u5185\u5bb9\u5982\u4e0b\uff1a<\/em><\/p>\n\n\n\n<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<kmodule xmlns=\"http:\/\/jboss.org\/kie\/6.0.0\/kmodule\">\n\n <!-- \u8fd9\u91cc\u7684packages\u5c5e\u6027\u5c31\u662f\u89c4\u5219\u6587\u4ef6\u7684\u6587\u4ef6\u8def\u5f84 -->\n <kbase name=\"point_rule\" packages=\"rules.point\">\n <ksession name=\"point_ksession\"\/>\n <\/kbase>\n\n<\/kmodule>\n<\/code><\/pre>\n\n\n\n\u4ee5\u4e0b\u5bf9\u914d\u7f6e\u8bf4\u660e\u8fdb\u884c\u7b80\u5355\u8bf4\u660e\uff1a<\/p>\n\n\n\n
- Kmodule\uff1a \u4e2d\u53ef\u4ee5\u5305\u542b\u4e00\u4e2a\u5230\u591a\u4e2a kbase,\u5206\u522b\u5bf9\u5e94 drl \u7684\u89c4\u5219\u6587\u4ef6\u3002<\/li>
- Kbase \u9700\u8981\u4e00\u4e2a\u552f\u4e00\u7684 name,\u53ef\u4ee5\u53d6\u4efb\u610f\u5b57\u7b26\u4e32\u3002<\/li>
- packages\uff1a \u4e3adrl\u6587\u4ef6\u6240\u5728resource\u76ee\u5f55\u4e0b\u7684\u8def\u5f84\u3002\u6ce8\u610f\u533a\u5206drl\u6587\u4ef6\u4e2d\u7684package\u4e0e\u6b64\u5904\u7684package\u4e0d\u4e00\u5b9a\u76f8\u540c\u3002\u591a\u4e2a\u5305\u7528\u9017\u53f7\u5206\u9694\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u4f1a\u626b\u63cf resources\u76ee\u5f55\u4e0b\u6240\u6709(\u5305\u542b\u5b50\u76ee\u5f55)\u89c4\u5219\u6587\u4ef6\u3002<\/li>
- kbase\u7684default\u5c5e\u6027\uff1a\u6807\u793a\u5f53\u524dKieBase\u662f\u4e0d\u662f\u9ed8\u8ba4\u7684,\u5982\u679c\u662f\u9ed8\u8ba4\u7684\u5219\u4e0d\u7528\u540d\u79f0 \u5c31\u53ef\u4ee5\u67e5\u627e\u5230\u8be5 KieBase,\u4f46\u6bcf\u4e2a module \u6700\u591a\u53ea\u80fd\u6709\u4e00\u4e2a\u9ed8\u8ba4 –
KieBase\u3002<\/li> - kbase\u7684ksession\uff1a kbase\u4e0b\u9762\u53ef\u4ee5\u6709\u4e00\u4e2a\u6216\u591a\u4e2a ksession\uff0cksession \u7684 name \u5c5e\u6027\u5fc5\u987b\u8bbe\u7f6e,\u4e14\u5fc5\u987b\u552f\u4e00\u3002<\/li><\/ul>\n\n\n\n
DroolsUtil<\/h3>\n\n\n\n
\u901a\u8fc7\u8be5\u7c7b\u52a0\u8f7dkmodule.xml\u6587\u4ef6\uff0c\u5e76\u83b7\u5f97KieSession\u3002<\/em><\/p>\n\n\n\n\/**\n * @author yuhao.wang\n *\/\npublic class DroolsUtil {\n public static final Logger log = LoggerFactory.getLogger(DroolsUtil.class);\n\n \/**\n * \u7ebf\u7a0b\u5b89\u5168\u5355\u4f8b\n *\/\n private static volatile KieServices kieServices = KieServices.Factory.get();\n \/**\n * KieBase\u5bb9\u5668\uff0c\u7ebf\u7a0b\u5b89\u5168\u5355\u4f8b\n *\/\n private static volatile KieContainer kieContainer;\n\n \/**\n * \u52a0\u8f7dKieContainer\u5bb9\u5668\n *\/\n public static KieContainer loadKieContainer() throws RuntimeException {\n \/\/\u901a\u8fc7kmodule.xml \u627e\u5230\u89c4\u5219\u6587\u4ef6,\u8fd9\u4e2a\u6587\u4ef6\u9ed8\u8ba4\u653e\u5728resources\/META-INF\u6587\u4ef6\u5939\n log.info(\"\u51c6\u5907\u521b\u5efa KieContainer\");\n\n if (kieContainer == null) {\n log.info(\"\u9996\u6b21\u521b\u5efa\uff1aKieContainer\");\n \/\/ \u8bbe\u7f6edrools\u7684\u65e5\u671f\u683c\u5f0f\n System.setProperty(\"drools.dateformat\", \"yyyy-MM-dd HH:mm:ss\");\n \/\/\u7ebf\u7a0b\u5b89\u5168\n synchronized (DroolsUtil.class) {\n if (kieContainer == null) {\n \/\/ \u521b\u5efaContainer\n kieContainer = kieServices.getKieClasspathContainer();\n \/\/ \u68c0\u67e5\u89c4\u5219\u6587\u4ef6\u662f\u5426\u6709\u9519\n Results results = kieContainer.verify();\n if (results.hasMessages(Message.Level.ERROR)) {\n StringBuffer sb = new StringBuffer();\n for (Message mes : results.getMessages()) {\n sb.append(\"\u89e3\u6790\u9519\u8bef\u7684\u89c4\u5219\uff1a\").append(mes.getPath()).append(\" \u9519\u8bef\u4f4d\u7f6e\uff1a\").append(mes.getLine()).append(\";\");\n }\n throw new RuntimeException(sb.toString());\n }\n }\n }\n\n }\n log.info(\"KieContainer\u521b\u5efa\u5b8c\u6bd5\");\n return kieContainer;\n }\n\n \/**\n * \u6839\u636ekiesession \u540d\u79f0\u521b\u5efaKieSession \uff0c\u6bcf\u6b21\u8c03\u7528\u90fd\u662f\u4e00\u4e2a\u65b0\u7684KieSession\n * @param name kiesession\u7684\u540d\u79f0\n * @return \u4e00\u4e2a\u65b0\u7684KieSession\uff0c\u6bcf\u6b21\u4f7f\u7528\u540e\u8981\u9500\u6bc1\n *\/\n public static KieSession getKieSessionByName(String name) {\n if (kieContainer == null) {\n kieContainer = loadKieContainer();\n }\n KieSession kieSession;\n try {\n kieSession = kieContainer.newKieSession(name);\n } catch (Exception e) {\n log.error(\"\u6839\u636e\u540d\u79f0\uff1a\" + name + \" \u521b\u5efakiesession\u5f02\u5e38\");\n throw new RuntimeException(e);\n }\n return kieSession;\n }\n\n}\n<\/code><\/pre>\n\n\n\n\u6267\u884c\u89c4\u5219<\/h3>\n\n\n\n
DroolsScoreExampleTest.java<\/em><\/p>\n\n\n\n\/**\n * \u8ba1\u7b97\u989d\u5916\u79ef\u5206\u91d1\u989d \u89c4\u5219\u5982\u4e0b: \u8ba2\u5355\u539f\u4ef7\u91d1\u989d\n * 100\u4ee5\u4e0b, \u4e0d\u52a0\u5206\n * 100-500 \u52a0100\u5206\n * 500-1000 \u52a0500\u5206\n * 1000 \u4ee5\u4e0a \u52a01000\u5206\n *\n * @param args\n * @throws Exception\n *\/\n public static final void main(final String[] args) throws Exception {\n \/\/ \u901a\u8fc7\u5de5\u5177\u7c7b\u53bb\u83b7\u53d6KieSession\n KieSession ksession = DroolsUtil.getKieSessionByName(\"point_ksession\");\n\n List<Order> orderList = getInitData();\n try {\n for (int i = 0; i < orderList.size(); i++) {\n Order o = orderList.get(i);\n ksession.insert(o);\n ksession.fireAllRules();\n \/\/ \u6267\u884c\u5b8c\u89c4\u5219\u540e, \u6267\u884c\u76f8\u5173\u7684\u903b\u8f91\n addScore(o);\n }\n } catch (Exception e) {\n\n } finally {\n ksession.destroy();\n }\n\n }\n<\/code><\/pre>\n\n\n\n\u57fa\u4e8e\u6570\u636e\u5e93\u7684\u65b9\u5f0f<\/h2>\n\n\n\n\u8868\u7ed3\u6784<\/h3>\n\n\n\n
<\/em><\/p>\n\n\n\nCREATE TABLE `rule` (\n `id` bigint(20) NOT NULL AUTO_INCREMENT,\n `rule_key` varchar(255) NOT NULL DEFAULT '' COMMENT '\u89c4\u5219\u7f16\u7801',\n `version` varchar(255) NOT NULL DEFAULT '' COMMENT '\u89c4\u5219\u7f16\u7801',\n `content` varchar(2048) NOT NULL DEFAULT '' COMMENT '\u89c4\u5219n\u5185\u5bb9',\n `create_time` datetime NOT NULL,\n `update_time` datetime DEFAULT NULL,\n PRIMARY KEY (`id`),\n UNIQUE KEY `uk_rule_key` (`rule_key`) USING BTREE,\n KEY `uk_update_time` (`update_time`) USING BTREE,\n KEY `uk_version` (`version`) USING BTREE\n) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8;<\/code><\/pre>\n\n\n\n\u83b7\u53d6KieSession<\/h3>\n\n\n\n
RuleServiceImpl.java<\/em><\/p>\n\n\n\n@Override\npublic KieSession getKieSessionByName(String ruleKey) {\n StatefulKnowledgeSession kSession = null;\n try {\n long startTime = System.currentTimeMillis();\n \/\/ TODO \u53ef\u4ee5\u7f13\u5b58\u5230\u672c\u5730\uff0c\u4e0d\u7528\u6bcf\u6b21\u90fd\u53bb\u67e5\u6570\u636e\u5e93\n Rule rule = ruleMapper.findByRuleKey(ruleKey);\n\n KnowledgeBuilder kb = KnowledgeBuilderFactory.newKnowledgeBuilder();\n \/\/ \u88c5\u5165\u89c4\u5219\uff0c\u53ef\u4ee5\u88c5\u5165\u591a\u4e2a\n kb.add(ResourceFactory.newByteArrayResource(rule.getContent().getBytes(\"utf-8\")), ResourceType.DRL);\n\n \/\/ \u68c0\u67e5\u9519\u8bef\n KnowledgeBuilderErrors errors = kb.getErrors();\n for (KnowledgeBuilderError error : errors) {\n System.out.println(error);\n }\n\n \/\/ TODO \u6ca1\u6709\u627e\u5230\u66ff\u4ee3\u65b9\u6cd5\n KnowledgeBase kBase = KnowledgeBaseFactory.newKnowledgeBase();\n kBase.addKnowledgePackages(kb.getKnowledgePackages());\n\n \/\/ \u521b\u5efakSession\n kSession = kBase.newStatefulKnowledgeSession();\n long endTime = System.currentTimeMillis();\n logger.info(\"\u83b7\u53d6kSession\u8017\u65f6\uff1a{}\", endTime - startTime);\n } catch (UnsupportedEncodingException e) {\n e.printStackTrace();\n }\n return kSession;\n}\n<\/code><\/pre>\n\n\n\n\u6267\u884c\u89c4\u5219<\/h3>\n\n\n\n
RuleController.java<\/em><\/p>\n\n\n\n@ResponseBody\n@RequestMapping(\"address\")\npublic Object test(int num) {\n AddressCheckResult result = new AddressCheckResult();\n Address address = new Address();\n address.setPostcode(generateRandom(num));\n\n String ruleKey = \"score\";\n KieSession kieSession = ruleService.getKieSessionByName(ruleKey);\n int ruleFiredCount = 0;\n try {\n kieSession.insert(address);\n kieSession.insert(result);\n ruleFiredCount = kieSession.fireAllRules();\n } catch (Exception e) {\n logger.warn(e.getMessage(), e);\n } finally {\n if (kieSession != null) {\n kieSession.destroy();\n }\n }\n System.out.println(\"\u89e6\u53d1\u4e86\" + ruleFiredCount + \"\u6761\u89c4\u5219\");\n\n if (result.isPostCodeResult()) {\n System.out.println(\"\u89c4\u5219\u6821\u9a8c\u901a\u8fc7\");\n }\n\n return \"ok\";\n}<\/code><\/pre>\n\n\n\n<\/p>\n\n\n\n
\u53c2\u8003\uff1a<\/p>\n\n\n\n
- https:\/\/zhuanlan.zhihu.com\/p\/28528925<\/a><\/li>
- http:\/\/blog.csdn.net\/quzishen\/article\/details\/6163012<\/a><\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"
\u89c4\u5219\u5f15\u64ce\uff0c\u82f1\u6587\u540d\u4e3abusiness rules management system(BRMS\uff09\uff0c\u662f\u4e00\u79cd\u53ef\u4ee5\u5728\u5e94 …<\/p>\n