提交利用反射设置简单类单级属性

javaDeveloperBook · javaDeveloperBook · commit 3137cfa82d5a · 2018-04-08T17:33:49.000+08:00
diff --git a/src/com/java/demo15/TestDemo.java b/src/com/java/demo15/TestDemo.java
diff --git a/src/com/java/demo15/TestDeptDemo.java b/src/com/java/demo15/TestDeptDemo.java
@@ -0,0 +1,11 @@
+package com.java.demo15;
+
+import com.java.demo15.action.DeptAction;
+
+public class TestDeptDemo {
+	public static void main(String[] args) {
+		String info = "dept.dname:事业部|dept.loc:重庆";
+		DeptAction deptAction = new DeptAction();
+		deptAction.index(info);
+	}
+}
diff --git a/src/com/java/demo15/TestEmpDemo.java b/src/com/java/demo15/TestEmpDemo.java
@@ -0,0 +1,11 @@
+package com.java.demo15;
+
+import com.java.demo15.action.EmpAction;
+
+public class TestEmpDemo {
+	public static void main(String[] args) {
+		String info = "emp.ename:Jaywu|emp.job:Java";
+		EmpAction empAction = new EmpAction();
+		empAction.index(info);
+	}
+}
diff --git a/src/com/java/demo15/action/DeptAction.java b/src/com/java/demo15/action/DeptAction.java
@@ -0,0 +1,23 @@
+package com.java.demo15.action;
+
+import com.java.demo15.utils.BeanOperation;
+import com.java.demo15.vo.Dept;
+
+public class DeptAction {
+
+	Dept dept = new Dept();
+
+	public void index(String info) {
+		BeanOperation.setFeildValue(this, info);
+		System.out.println(this.dept);
+	}
+
+	public Dept getDept() {
+		return dept;
+	}
+
+	public void setDept(Dept dept) {
+		this.dept = dept;
+	}
+
+}
diff --git a/src/com/java/demo15/action/EmpAction.java b/src/com/java/demo15/action/EmpAction.java
@@ -0,0 +1,29 @@
+package com.java.demo15.action;
+
+import com.java.demo15.utils.BeanOperation;
+import com.java.demo15.vo.Emp;
+
+/**
+ * 模拟Action
+ * 
+ * @author jack w
+ *
+ */
+public class EmpAction {
+
+	private Emp emp = new Emp();
+
+	public void index(String info) {
+		BeanOperation.setFeildValue(this, info);
+		System.out.println(this.emp);
+	}
+
+	public Emp getEmp() {
+		return emp;
+	}
+
+	public void setEmp(Emp emp) {
+		this.emp = emp;
+	}
+
+}
diff --git a/src/com/java/demo15/utils/BeanOperation.java b/src/com/java/demo15/utils/BeanOperation.java
@@ -0,0 +1,29 @@
+package com.java.demo15.utils;
+
+public class BeanOperation {
+	
+	private BeanOperation(){}
+	
+	/**
+	 * 根据字符串设置对象的属性值
+	 * @param object
+	 * @param value
+	 */
+	public static void setFeildValue(Object object,String info) {
+		String [] fieldStrArr = info.split("\\|");
+		for(int i = 0 ; i < fieldStrArr.length ; i++){
+			String [] fieldArr = fieldStrArr[i].split(":");
+			//两个属性名字符串
+			String fieldName = fieldArr[0];
+			//设置属性值
+			String fieldValue = fieldArr[1];
+			String[] fieldTemp = fieldName.split("\\.");
+			try {
+				Object object2 =  ObjectUtil.getValue(object, fieldTemp[0]);
+				ObjectUtil.setValue(object2, fieldTemp[1], fieldValue);
+			} catch (Exception e) {
+				e.printStackTrace();
+			}
+		}
+	}
+}
diff --git a/src/com/java/demo15/utils/ObjectUtil.java b/src/com/java/demo15/utils/ObjectUtil.java
@@ -0,0 +1,45 @@
+package com.java.demo15.utils;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+
+/**
+ * 
+ * 利用反射进行属性值的取得和设置
+ * @author jack w
+ *
+ */
+public class ObjectUtil {
+	private ObjectUtil(){}
+	
+	/**
+	 * 为某个对象根据属性设置值
+	 * @param object
+	 * @param fieldName
+	 * @param value
+	 * @throws Exception
+	 */
+	public static void setValue(Object object,String fieldName,String value) throws Exception {
+		String methodName = "set"+StringUtil.initCat(fieldName);
+		Field field = object.getClass().getDeclaredField(fieldName);
+		if (null == field) {
+			field = object.getClass().getField(fieldName);
+		}
+		Method method = object.getClass().getMethod(methodName, field.getType());
+		method.invoke(object, value);
+	}
+	
+	/**
+	 * 取得某个对象的属性对象
+	 * @param object
+	 * @param field
+	 * @return
+	 * @throws Exception 
+	 */
+	public static Object getValue(Object object,String fieldName) throws Exception {
+		String methodName = "get"+StringUtil.initCat(fieldName);
+		Method method = object.getClass().getMethod(methodName);
+		return method.invoke(object);
+	}
+	
+}
diff --git a/src/com/java/demo15/utils/StringUtil.java b/src/com/java/demo15/utils/StringUtil.java
@@ -0,0 +1,18 @@
+package com.java.demo15.utils;
+
+/**
+ * 根据属性名获取setter/getter方法名
+ * 
+ * @author jack w
+ *
+ */
+public class StringUtil {
+
+	private StringUtil(){
+		
+	}
+	
+	public static String initCat(String fieldName) {
+		return fieldName.substring(0,1).toUpperCase()+fieldName.substring(1);
+	}
+}
diff --git a/src/com/java/demo15/vo/Dept.java b/src/com/java/demo15/vo/Dept.java
@@ -0,0 +1,29 @@
+package com.java.demo15.vo;
+
+public class Dept {
+
+	private String dname;
+	private String loc;
+
+	public String getDname() {
+		return dname;
+	}
+
+	public void setDname(String dname) {
+		this.dname = dname;
+	}
+
+	public String getLoc() {
+		return loc;
+	}
+
+	public void setLoc(String loc) {
+		this.loc = loc;
+	}
+
+	@Override
+	public String toString() {
+		return "Dept [dname=" + dname + ", loc=" + loc + "]";
+	}
+
+}
diff --git a/src/com/java/demo15/vo/Emp.java b/src/com/java/demo15/vo/Emp.java
@@ -2,9 +2,30 @@
 
 import java.io.Serializable;
 
-
 @SuppressWarnings("serial")
-public class Emp implements Serializable{
+public class Emp implements Serializable {
 	private String ename;
 	private String job;
+
+	public String getEname() {
+		return ename;
+	}
+
+	public void setEname(String ename) {
+		this.ename = ename;
+	}
+
+	public String getJob() {
+		return job;
+	}
+
+	public void setJob(String job) {
+		this.job = job;
+	}
+
+	@Override
+	public String toString() {
+		return "Emp [ename=" + ename + ", job=" + job + "]";
+	}
+
 }
