📄 sisters.jsp
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<%@ page import="javax.naming.InitialContext, java.io.Reader, java.io.InputStreamReader, java.util.List, java.util.ArrayList, sisters.Person, java.io.FileInputStream, org.drools.jsr94.rules.RuleServiceProviderImpl, javax.naming.NameNotFoundException, java.io.IOException, javax.rules.admin.*, javax.rules.*, java.util.HashMap"%><html><head><link rel="stylesheet" href="../styles.css"><title>Drools JSR-94 Compliant Rule Engine</title></head><body><a href="http://www.drools.org"><img src="http://images.werken.com/drools.gif" border="0"></a><h3>Example Sisters</h3><p><% String SISTERS_RULES_URI = "http://drools.org/rules/example/sisters"; RuleServiceProvider ruleServiceProvider = null; try { InitialContext iniCtx = new InitialContext(); ruleServiceProvider = (RuleServiceProvider)iniCtx.lookup("java:/jsr94/drools"); } catch (NameNotFoundException ex) { System.err.println(ex); ruleServiceProvider = new RuleServiceProviderImpl(); } StatelessRuleSession ruleSession = null; try { RuleAdministrator ruleAdministrator = ruleServiceProvider.getRuleAdministrator(); // Load the rules RuleExecutionSetProvider ruleSetProvider = ruleAdministrator.getRuleExecutionSetProvider(null); String ruleUri = Person.class.getResource("sisters.drl").toExternalForm(); RuleExecutionSet ruleSet = ruleSetProvider.createRuleExecutionSet(ruleUri, null); // register the rule set ruleAdministrator.registerRuleExecutionSet(SISTERS_RULES_URI, ruleSet, null); HashMap appData = new HashMap(); appData.put("message", "This came from the appData HashMap"); // obtain the stateless rule session RuleRuntime ruleRuntime = ruleServiceProvider.getRuleRuntime(); ruleSession = (StatelessRuleSession)ruleRuntime.createRuleSession(SISTERS_RULES_URI, appData, RuleRuntime.STATELESS_SESSION_TYPE); List inObjects = new ArrayList(); Person person = new Person("bob"); inObjects.add(person); person = new Person("rebecca"); person.addSister("jeannie"); inObjects.add(person); person = new Person("jeannie"); person.addSister("rebecca"); inObjects.add(person); // execute the rules List outList = ruleSession.executeRules(inObjects); out.println("<code>"); for (int i = 0; i < outList.size(); i++) { Object obj = outList.get(i); out.println("[" + obj.getClass().getName() + "] " + obj + "<br>"); } out.println("</code>"); } catch (Exception ex) { ex.printStackTrace(); throw ex; } finally { if (ruleSession != null) { ruleSession.release(); } }%></body></html>⌨️ 快捷键说明
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