add and test method to transfer a bean to another bean

easepan · easepan · commit c429f659635e · 2018-09-23T00:31:42.000+08:00
diff --git a/src/main/java/com/zhazhapan/util/BeanUtils.java b/src/main/java/com/zhazhapan/util/BeanUtils.java
@@ -28,6 +28,39 @@ public class BeanUtils {
 
     private BeanUtils() {}
 
+    /**
+     * 将一个Bean的数据装换到另外一个（需实现setter和getter）
+     *
+     * @param object 一个Bean
+     * @param clazz 另外一个Bean
+     * @param <T> 另外Bean类型
+     *
+     * @return {@link T}
+     *
+     * @throws IllegalAccessException 异常
+     * @throws InstantiationException 异常
+     * @throws NoSuchMethodException 异常
+     * @throws InvocationTargetException 异常
+     * @since 1.1.1
+     */
+    public static <T> T bean2Another(Object object, Class<T> clazz) throws IllegalAccessException,
+            InstantiationException, NoSuchMethodException, InvocationTargetException {
+        T t = clazz.newInstance();
+        Method[] methods = object.getClass().getMethods();
+        Map<String, Method> clazzMethods = ReflectUtils.getMethodMap(clazz, "set");
+        for (Method method : methods) {
+            String name = method.getName();
+            if (name.startsWith("get") && !"getClass".equals(name)) {
+                String clazzMethod = "s" + name.substring(1);
+                if (clazzMethods.containsKey(clazzMethod)) {
+                    clazzMethods.get(clazzMethod).invoke(t, method.invoke(object));
+                }
+            }
+        }
+        return t;
+
+    }
+
     /**
      * 反序列化对象
      *
diff --git a/src/test/java/com/zhazhapan/util/BeanUtilsTest.java b/src/test/java/com/zhazhapan/util/BeanUtilsTest.java
@@ -6,12 +6,16 @@
 import com.zhazhapan.util.enums.FieldModifier;
 import com.zhazhapan.util.enums.JsonMethod;
 import com.zhazhapan.util.enums.JsonType;
+import com.zhazhapan.util.model.A;
+import com.zhazhapan.util.model.B;
 import net.sf.cglib.proxy.Enhancer;
+import org.junit.Assert;
 import org.junit.Test;
 
 import java.io.File;
 import java.io.IOException;
 import java.io.Serializable;
+import java.lang.reflect.InvocationTargetException;
 import java.util.Date;
 
 /**
@@ -80,12 +84,30 @@ public void toJsonString2() {
     @Test
     public void toJsonStringByAnnotation() {
     }
+
+    @Test
+    public void bean2Another() throws InvocationTargetException, NoSuchMethodException, InstantiationException,
+            IllegalAccessException {
+        B b = new B();
+        b.setAge(102);
+        b.setBio("test");
+        A a = BeanUtils.bean2Another(b, A.class);
+        Assert.assertNotNull(a);
+        System.out.println(a);
+    }
+
+    @Test
+    public void toJsonObject() {
+    }
 }
 
 @ToJsonString(type = JsonType.PRETTY, modifier = FieldModifier.PRIVATE, method = JsonMethod.MANUAL)
 class User implements Serializable {
+
     public int id;
+
     private String name;
+
     private Date birth;
 
     public User() {}
diff --git a/src/test/java/com/zhazhapan/util/model/A.java b/src/test/java/com/zhazhapan/util/model/A.java
@@ -0,0 +1,43 @@
+package com.zhazhapan.util.model;
+
+/**
+ * @author pantao
+ * @since 2018/9/22
+ */
+public class A {
+
+    private String name;
+
+    private String gender;
+
+    private Integer age;
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getGender() {
+        return gender;
+    }
+
+    public void setGender(String gender) {
+        this.gender = gender;
+    }
+
+    public Integer getAge() {
+        return age;
+    }
+
+    public void setAge(Integer age) {
+        this.age = age;
+    }
+
+    @Override
+    public String toString() {
+        return "A{" + "name='" + name + '\'' + ", gender='" + gender + '\'' + ", age=" + age + '}';
+    }
+}
diff --git a/src/test/java/com/zhazhapan/util/model/B.java b/src/test/java/com/zhazhapan/util/model/B.java
@@ -0,0 +1,33 @@
+package com.zhazhapan.util.model;
+
+/**
+ * @author pantao
+ * @since 2018/9/22
+ */
+public class B {
+
+    private Integer age;
+
+    private String bio;
+
+    @Override
+    public String toString() {
+        return "B{" + "age=" + age + ", bio='" + bio + '\'' + '}';
+    }
+
+    public String getBio() {
+        return bio;
+    }
+
+    public void setBio(String bio) {
+        this.bio = bio;
+    }
+
+    public Integer getAge() {
+        return age;
+    }
+
+    public void setAge(Integer age) {
+        this.age = age;
+    }
+}
