设计模式测试例子

Author: enjoyCoding666

pom.xml

@@ -13,7 +13,11 @@
             <artifactId>cglib</artifactId>
             <version>2.2.2</version>
         </dependency>
-
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>1.18.8</version>
+        </dependency>
     </dependencies>
 
     <build>

src/main/java/demo/invoice/Invoice.java

@@ -0,0 +1,34 @@
+package demo.invoice;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.math.BigDecimal;
+
+@Data
+@Builder
+@AllArgsConstructor
+@NoArgsConstructor
+public class Invoice {
+	private String invoiceNo;
+	private String invoiceCode;
+	private Integer invoiceType;
+
+	private BigDecimal invoiceAmount;
+	private BigDecimal taxAmount;
+	private BigDecimal totalAmount;
+
+	/**
+	 * 火车票的专属字段，这个是否要抽到另一个对象里面?
+	 */
+	private String trainNum;
+	private String passengerName;
+	/**
+	 * 飞机票专属字段。
+	 */
+	private String electronicTicketNum;
+	private String customerIdentityNum;
+
+}

src/main/java/demo/invoice/InvoiceAir.java

@@ -0,0 +1,25 @@
+package demo.invoice;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.math.BigDecimal;
+
+@Data
+@Builder
+@AllArgsConstructor
+@NoArgsConstructor
+public class InvoiceAir {
+	private String invoiceNo;
+	private String invoiceCode;
+	private Integer invoiceType;
+
+	private BigDecimal invoiceAmount;
+	private BigDecimal taxAmount;
+	private BigDecimal totalAmount;
+
+	private String electronicTicketNum;
+	private String customerIdentityNum;
+}

src/main/java/demo/invoice/InvoiceService.java

@@ -0,0 +1,12 @@
+package demo.invoice;
+
+public interface InvoiceService {
+
+	Invoice queryInvoice();
+
+	int saveInvoice();
+
+	int updateInvoice();
+
+	int insertInvoice();
+}

src/main/java/demo/invoice/InvoiceServiceAir.java

@@ -0,0 +1,24 @@
+package demo.invoice;
+
+public class InvoiceServiceAir implements InvoiceService{
+
+	@Override
+	public Invoice queryInvoice() {
+		return null;
+	}
+
+	@Override
+	public int saveInvoice() {
+		return 0;
+	}
+
+	@Override
+	public int updateInvoice() {
+		return 0;
+	}
+
+	@Override
+	public int insertInvoice() {
+		return 0;
+	}
+}

src/main/java/demo/invoice/InvoiceServiceTrain.java

@@ -0,0 +1,23 @@
+package demo.invoice;
+
+public class InvoiceServiceTrain implements InvoiceService {
+	@Override
+	public Invoice queryInvoice() {
+		return null;
+	}
+
+	@Override
+	public int saveInvoice() {
+		return 0;
+	}
+
+	@Override
+	public int updateInvoice() {
+		return 0;
+	}
+
+	@Override
+	public int insertInvoice() {
+		return 0;
+	}
+}

src/main/java/demo/invoice/InvoiceTest.java

@@ -0,0 +1,27 @@
+package demo.invoice;
+
+/**
+ *
+ */
+public class InvoiceTest {
+	public static void main(String[] args) {
+		int invoiceType=8;
+		updateInvoice(invoiceType);
+
+	}
+
+	public static void updateInvoice(int invoiceType){
+		Invoice invoice=new Invoice();
+		//根据不同的发票类型生成不同的发票服务
+		InvoiceService invoiceService=null;
+		if(invoiceType==8) {
+			 invoiceService=new InvoiceServiceAir();
+		}else if(invoiceType==9){
+			 invoiceService=new InvoiceServiceTrain();
+		}
+		invoiceService.updateInvoice();
+
+
+	}
+
+}

src/main/java/demo/invoice/InvoiceTrain.java

@@ -0,0 +1,26 @@
+package demo.invoice;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.math.BigDecimal;
+
+
+@Data
+@Builder
+@AllArgsConstructor
+@NoArgsConstructor
+public class InvoiceTrain {
+	private String invoiceNo;
+	private String invoiceCode;
+	private Integer invoiceType;
+
+	private BigDecimal invoiceAmount;
+	private BigDecimal taxAmount;
+	private BigDecimal totalAmount;
+
+	private String trainNum;
+	private String passengerName;
+}