JAVA反射获取类的属性及类型

通过反射获取类属性字段 以及 调用类方法
public class ModelClassHelper {

public static HashMap<String,Class> init(String classPath)
{
try {
//"com.geocompass.model.STSTBPRPModel"
HashMap<String,Class> fieldHashMap=new HashMap<String,Class>();
Class cls = Class.forName(classPath); //com.geocompass.model.STSTBPRPModel
Field[] fieldlist = cls.getDeclaredFields();
for (int i = 0; i < fieldlist.length; i++) {
Field fld = fieldlist[i];
fieldHashMap.put(fld.getName(), fld.getType());
// System.out.println("name = " + fld.getName());
// System.out.println("decl class = " + fld.getDeclaringClass());
// System.out.println("type = " + fld.getType());
// System.out.println("-----");
}
return fieldHashMap;
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
public static String getTableName(String classPath)
{
try {
Class cls = Class.forName(classPath);
Method test=cls.getDeclaredMethod("getTableName" );
Object invoke = test.invoke(cls.newInstance());
return invoke.toString();
//cls.asSubclass(TabModel.class);
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (NoSuchMethodException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InvocationTargetException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InstantiationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return "";
}}

利用反射技术动态获取任意Java类实例的属性值

package org.apache.easframework.core.entity.impl;

import java.lang.reflect.Field;

public class TestEntity {

private String code;
private String name;

public void setCode(String code)
{
this.code = code;
}

public String getCode()
{
return this.code;
}

public void setName(String name)
{
this.name = name;
}

public String getName()
{
return this.name;
}

public static void main(String[] args) throws SecurityException, ClassNotFoundException, IllegalArgumentException, IllegalAccessException
{
TestEntity obj = new TestEntity();
obj.setName("name value");
obj.setCode("code value");
Field[] fds = Class.forName
("org.apache.easframework.core.entity.impl.TestEntity").getDeclaredFields();

System.out.println(fds.length);
for(int i=0;i<fds.length;i++)
{
System.out.println(fds[i].get(obj));

}
}

}

转载自：http://blog.csdn.net/wpcxyking/article/details/6139549