!526 新增通用builder类：GenericBuilder

Merge pull request !526 from 不败/v5-dev

hutool-core/src/test/java/cn/hutool/core/builder/GenericBuilderTest.java

@@ -0,0 +1,69 @@
+package cn.hutool.core.builder;
+
+import cn.hutool.core.util.StrUtil;
+import lombok.*;
+import org.junit.Test;
+
+/**
+ * {@link GenericBuilder} 单元测试类
+ *
+ * @author TomXin
+ */
+public class GenericBuilderTest {
+
+	@Test
+	public void test() {
+		Box box = GenericBuilder
+				.of(Box::new)
+				.with(Box::setId, 1024L)
+				.with(Box::setTitle, "Hello World!")
+				.with(Box::setLength, 9)
+				.with(Box::setWidth, 8)
+				.with(Box::setHeight, 7)
+				.build();
+		System.out.println(box);
+		Box boxModified = GenericBuilder
+				.of(() -> box)
+				.with(Box::setTitle, "Hello Friend!")
+				.with(Box::setLength, 3)
+				.with(Box::setWidth, 4)
+				.with(Box::setHeight, 5)
+				.build();
+		System.out.println(boxModified);
+		Box box1 = GenericBuilder
+				.of(Box::new, 2048L, "Hello Partner!", 222, 333, 444)
+				.with(Box::alis)
+				.build();
+		System.out.println(box1);
+	}
+
+	@Getter
+	@Setter
+	@ToString
+	public static class Box {
+		private Long id;
+		private String title;
+		private Integer length;
+		private Integer width;
+		private Integer height;
+		private String titleAlias;
+
+		public Box() {
+		}
+
+		public Box(Long id, String title, Integer length, Integer width, Integer height) {
+			this.id = id;
+			this.title = title;
+			this.length = length;
+			this.width = width;
+			this.height = height;
+		}
+
+		public void alis() {
+			if (StrUtil.isNotBlank(this.title)) {
+				this.titleAlias = "TomXin:\"" + title + "\"";
+			}
+		}
+	}
+
+}