From 02107b8d2232e61f27e2398102e288d913a77360 Mon Sep 17 00:00:00 2001 From: chenjianqiang Date: Wed, 13 Oct 2021 10:51:26 +0800 Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0=E7=AD=96=E7=95=A5=E6=A8=A1?= =?UTF-8?q?=E5=BC=8F=E6=A1=88=E4=BE=8B=20Signed-off-by:=20chenjianqiang=20?= =?UTF-8?q??= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .idea/.gitignore | 0 .idea/description.html | 1 + .idea/encodings.xml | 6 + .idea/inspectionProfiles/Project_Default.xml | 36 +++++ .idea/misc.xml | 12 ++ .idea/modules.xml | 8 ++ .idea/project-template.xml | 3 + .idea/workspace.xml | 125 ++++++++++++++++++ .../InterpreterPattern/InterpreterMain.class | Bin 0 -> 2498 bytes .../InterpreterPattern/po/AndExpression.class | Bin 0 -> 803 bytes .../InterpreterPattern/po/Expression.class | Bin 0 -> 176 bytes .../InterpreterPattern/po/OrExpression.class | Bin 0 -> 801 bytes .../po/TerminalExpression.class | Bin 0 -> 1716 bytes 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+++ src/com/chen/StrategyPattern/po/Strategy.java | 14 ++ 33 files changed, 513 insertions(+) create mode 100644 .idea/.gitignore create mode 100644 .idea/description.html create mode 100644 .idea/encodings.xml create mode 100644 .idea/inspectionProfiles/Project_Default.xml create mode 100644 .idea/misc.xml create mode 100644 .idea/modules.xml create mode 100644 .idea/project-template.xml create mode 100644 .idea/workspace.xml create mode 100644 out/production/patterns/com/chen/InterpreterPattern/InterpreterMain.class create mode 100644 out/production/patterns/com/chen/InterpreterPattern/po/AndExpression.class create mode 100644 out/production/patterns/com/chen/InterpreterPattern/po/Expression.class create mode 100644 out/production/patterns/com/chen/InterpreterPattern/po/OrExpression.class create mode 100644 out/production/patterns/com/chen/InterpreterPattern/po/TerminalExpression.class create mode 100644 out/production/untitled/com/company/InterpreterPattern/AndExpression.class create mode 100644 out/production/untitled/com/company/InterpreterPattern/Expression.class create mode 100644 out/production/untitled/com/company/InterpreterPattern/InterpreterMain.class create mode 100644 out/production/untitled/com/company/InterpreterPattern/OrExpression.class create mode 100644 out/production/untitled/com/company/InterpreterPattern/TerminalExpression.class create mode 100644 out/production/untitled/com/company/Main.class create mode 100644 patterns.iml create mode 100644 src/com/chen/InterpreterPattern/InterpreterMain.java create mode 100644 src/com/chen/InterpreterPattern/package-info.java create mode 100644 src/com/chen/InterpreterPattern/po/AndExpression.java create mode 100644 src/com/chen/InterpreterPattern/po/Expression.java create mode 100644 src/com/chen/InterpreterPattern/po/OrExpression.java create mode 100644 src/com/chen/InterpreterPattern/po/TerminalExpression.java create mode 100644 src/com/chen/PatternApplication.java create mode 100644 src/com/chen/StrategyPattern/Context.java create mode 100644 src/com/chen/StrategyPattern/StrategyMain.java create mode 100644 src/com/chen/StrategyPattern/package-info.java create mode 100644 src/com/chen/StrategyPattern/po/OperationA.java create mode 100644 src/com/chen/StrategyPattern/po/OperationB.java create mode 100644 src/com/chen/StrategyPattern/po/Strategy.java diff --git a/.idea/.gitignore b/.idea/.gitignore new file mode 100644 index 0000000..e69de29 diff --git a/.idea/description.html b/.idea/description.html new file mode 100644 index 0000000..db5f129 --- /dev/null +++ b/.idea/description.html @@ -0,0 +1 @@ +Simple Java application that includes a class with main() method \ No newline at end of file diff --git a/.idea/encodings.xml b/.idea/encodings.xml new file mode 100644 index 0000000..97626ba --- /dev/null +++ b/.idea/encodings.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/.idea/inspectionProfiles/Project_Default.xml 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b/src/com/chen/InterpreterPattern/InterpreterMain.java new file mode 100644 index 0000000..97d933d --- /dev/null +++ b/src/com/chen/InterpreterPattern/InterpreterMain.java @@ -0,0 +1,55 @@ +package com.chen.InterpreterPattern; + +import com.chen.InterpreterPattern.po.AndExpression; +import com.chen.InterpreterPattern.po.Expression; +import com.chen.InterpreterPattern.po.OrExpression; +import com.chen.InterpreterPattern.po.TerminalExpression; + +/** + * 解释器模式触发器 + * + * @author lx + * @date 2021/10/13 9:23 + **/ +public class InterpreterMain { + String[] cityAndFree = new String[]{"杭州", "攀枝花"}; + String[] cardAndFree = new String[]{"市民卡", "社保卡"}; + String[] workAndFree = new String[]{"税务够年", "已退休"}; + + String[] allOrFree = new String[]{"孕妇", "退伍军人", "儿童"}; + + String freeNotice = "滴，免费卡！"; + String spendNotice = "滴，扣费一万元！余额不足，请下去！"; + + String[] customers = new String[]{"已退休的杭州的市民卡", "税务够年的上海的市民卡", "杭州的社保卡的已退休", "成都的退伍军人", "北京的市民卡"}; + + Expression e; + TerminalExpression allOrFreeT; + TerminalExpression cityAndFreeT; + TerminalExpression cardAndFreeT; + TerminalExpression workAndFreeT; + + public void main() { + + allOrFreeT = new TerminalExpression(allOrFree); + cityAndFreeT = new TerminalExpression(cityAndFree); + cardAndFreeT = new TerminalExpression(cardAndFree); + workAndFreeT = new TerminalExpression(workAndFree); + + for (String customer : customers) { + + System.out.println("欢迎“".concat(customer).concat("”乘车，正在检查你的卡：")); + + System.out.println(">>>>>>>>>>>>>>>>>>>>>>>".concat(exec(customer))); + + } + + } + + private String exec(String customer) { + + e = new OrExpression(allOrFreeT, new AndExpression(cityAndFreeT, new AndExpression(cardAndFreeT, workAndFreeT))); + + return !e.interpret(customer) ? spendNotice : freeNotice; + } +} diff --git a/src/com/chen/InterpreterPattern/package-info.java b/src/com/chen/InterpreterPattern/package-info.java new file mode 100644 index 0000000..38ba8b1 --- /dev/null +++ b/src/com/chen/InterpreterPattern/package-info.java @@ -0,0 +1,9 @@ +/** + * 解释器模式 + */ +package com.chen.InterpreterPattern; +/* + * 使用场景：执行多个固定的终端计算，将多个结果进行与或的判断 + * 类说明细：Expression：接口起点；OrExpression：将两个子计算的结果进行或判断；AndExpression：将两个子计算的结果进行与判断； + * 注意事项：一个子计算的结果可以是孙子计算的结果 + */ diff --git a/src/com/chen/InterpreterPattern/po/AndExpression.java b/src/com/chen/InterpreterPattern/po/AndExpression.java new file mode 100644 index 0000000..31cad07 --- /dev/null +++ b/src/com/chen/InterpreterPattern/po/AndExpression.java @@ -0,0 +1,28 @@ +package com.chen.InterpreterPattern.po; + +/** + * 与 + * @author lx + * @date 2021/10/13 9:33 + **/ +public class AndExpression implements Expression{ + + private final Expression e1; + private final Expression e2; + + public AndExpression(Expression e1, Expression e2) { + this.e1 = e1; + this.e2 = e2; + } + + /** + * 解释 + * + * @param context 正文 + * @return true、false + */ + @Override + public boolean interpret(String context) { + return e1.interpret(context) && e2.interpret(context); + } +} diff --git a/src/com/chen/InterpreterPattern/po/Expression.java b/src/com/chen/InterpreterPattern/po/Expression.java new file mode 100644 index 0000000..c5675f5 --- /dev/null +++ b/src/com/chen/InterpreterPattern/po/Expression.java @@ -0,0 +1,18 @@ +package com.chen.InterpreterPattern.po; + +/** + * 表达 + * + * @author lx + * @date 2021/10/13 9:20 + **/ +public interface Expression { + + /** + * 解释 + * + * @param context 正文 + * @return true、false + */ + boolean interpret(String context); +} diff --git a/src/com/chen/InterpreterPattern/po/OrExpression.java b/src/com/chen/InterpreterPattern/po/OrExpression.java new file mode 100644 index 0000000..fc25670 --- /dev/null +++ b/src/com/chen/InterpreterPattern/po/OrExpression.java @@ -0,0 +1,28 @@ +package com.chen.InterpreterPattern.po; + +/** + * 或 + * @author lx + * @date 2021/10/13 9:33 + **/ +public class OrExpression implements Expression{ + + private final Expression e1; + private final Expression e2; + + public OrExpression(Expression e1, Expression e2) { + this.e1 = e1; + this.e2 = e2; + } + + /** + * 解释 + * + * @param context 正文 + * @return true、false + */ + @Override + public boolean interpret(String context) { + return e1.interpret(context) || e2.interpret(context); + } +} diff --git a/src/com/chen/InterpreterPattern/po/TerminalExpression.java b/src/com/chen/InterpreterPattern/po/TerminalExpression.java new file mode 100644 index 0000000..072b8e4 --- /dev/null +++ b/src/com/chen/InterpreterPattern/po/TerminalExpression.java @@ -0,0 +1,46 @@ +package com.chen.InterpreterPattern.po; + +import java.util.Arrays; +import java.util.HashSet; +import java.util.Set; + +/** + * 终端计算 + * + * @author lx + * @date 2021/10/13 9:33 + **/ +public class TerminalExpression implements Expression { + + private final Set data; + + public TerminalExpression(String[] data) { + this.data = new HashSet<>(Arrays.asList(data)); + } + + /** + * 解释 + * + * @param context 被验证元素 + * @return true、false + */ + @Override + public boolean interpret(String context) { + + System.out.println(data); + + String splitFux = "的"; + if(!context.contains(splitFux)){ + return data.contains(context); + } + String[] contexts = context.split(splitFux); + boolean result = false; + for (String s : contexts) { + if (data.contains(s)) { + result = true; + } + } + System.out.println("结果：" + result); + return result; + } +} diff --git a/src/com/chen/PatternApplication.java b/src/com/chen/PatternApplication.java new file mode 100644 index 0000000..fd0529f --- /dev/null +++ b/src/com/chen/PatternApplication.java @@ -0,0 +1,21 @@ +package com.chen; + +import com.chen.InterpreterPattern.InterpreterMain; +import com.chen.StrategyPattern.StrategyMain; + +/** + * @author lx + */ +public class PatternApplication { + + public static void main(String[] args) { + + //解释器模式 +// new InterpreterMain().main(); + + //策略模式 + new StrategyMain().main(); + + } + +} diff --git a/src/com/chen/StrategyPattern/Context.java b/src/com/chen/StrategyPattern/Context.java new file mode 100644 index 0000000..6a110fb --- /dev/null +++ b/src/com/chen/StrategyPattern/Context.java @@ -0,0 +1,22 @@ +package com.chen.StrategyPattern; + +import com.chen.StrategyPattern.po.Strategy; + +/** + * @author lx + * @date 2021/10/13 11:30 + **/ +public class Context { + /** + * 本次策略规则对象 + */ + private final Strategy strategy; + + public Context(Strategy strategy) { + this.strategy = strategy; + } + + public int exec(int a, int b) { + return strategy.exec(a, b); + } +} diff --git a/src/com/chen/StrategyPattern/StrategyMain.java b/src/com/chen/StrategyPattern/StrategyMain.java new file mode 100644 index 0000000..ed0fef5 --- /dev/null +++ b/src/com/chen/StrategyPattern/StrategyMain.java @@ -0,0 +1,25 @@ +package com.chen.StrategyPattern; + +import com.chen.StrategyPattern.po.OperationA; +import com.chen.StrategyPattern.po.OperationB; + +/** + * @author lx + * @date 2021/10/13 11:32 + **/ +public class StrategyMain { + + public void main() { + int a = 5; + int b = 11; + + + Context c = new Context(new OperationA()); + System.err.println(c.exec(a, b)); + + + c = new Context(new OperationB()); + System.err.println(c.exec(a, b)); + } + +} diff --git a/src/com/chen/StrategyPattern/package-info.java b/src/com/chen/StrategyPattern/package-info.java new file mode 100644 index 0000000..cf77b97 --- /dev/null +++ b/src/com/chen/StrategyPattern/package-info.java @@ -0,0 +1,7 @@ +/** + * 策略模式 + */ +package com.chen.StrategyPattern; +/* + * 传入不同的计算策略，对同一对值执行对应的计算逻辑 + */ diff --git a/src/com/chen/StrategyPattern/po/OperationA.java b/src/com/chen/StrategyPattern/po/OperationA.java new file mode 100644 index 0000000..107cec0 --- /dev/null +++ b/src/com/chen/StrategyPattern/po/OperationA.java @@ -0,0 +1,19 @@ +package com.chen.StrategyPattern.po; + +/** + * @author lx + * @date 2021/10/13 11:28 + **/ +public class OperationA implements Strategy{ + /** + * 策略执行方法 + * + * @param a 值 + * @param b 值 + * @return 计算结果值 + */ + @Override + public int exec(int a, int b) { + return a + b; + } +} diff --git a/src/com/chen/StrategyPattern/po/OperationB.java b/src/com/chen/StrategyPattern/po/OperationB.java new file mode 100644 index 0000000..41f46f8 --- /dev/null +++ b/src/com/chen/StrategyPattern/po/OperationB.java @@ -0,0 +1,19 @@ +package com.chen.StrategyPattern.po; + +/** + * @author lx + * @date 2021/10/13 11:28 + **/ +public class OperationB implements Strategy{ + /** + * 策略执行方法 + * + * @param a 值 + * @param b 值 + * @return 计算结果值 + */ + @Override + public int exec(int a, int b) { + return a * b; + } +} diff --git a/src/com/chen/StrategyPattern/po/Strategy.java b/src/com/chen/StrategyPattern/po/Strategy.java new file mode 100644 index 0000000..ad8fac9 --- /dev/null +++ b/src/com/chen/StrategyPattern/po/Strategy.java @@ -0,0 +1,14 @@ +package com.chen.StrategyPattern.po; + +/** + * @author lx + */ +public interface Strategy { + /** + * 策略执行方法 + * @param a 值 + * @param b 值 + * @return 计算结果值 + */ + int exec(int a, int b); +} -- GitLab