java中遍历实体类属性和类型详解编程语言

public static void testReflect(Object model) throws NoSuchMethodException, IllegalAccessException, IllegalArgumentException, InvocationTargetException{ 
        Field[] field = model.getClass().getDeclaredFields();        //获取实体类的所有属性，返回Field数组   
        for(int j=0 ; j<field.length ; j++){     //遍历所有属性 
                String name = field[j].getName();    //获取属性的名字     
                System.out.println("attribute name:"+name);      
                name = name.substring(0,1).toUpperCase()+name.substring(1); //将属性的首字符大写，方便构造get，set方法 
                String type = field[j].getGenericType().toString();    //获取属性的类型 
                if(type.equals("class java.lang.String")){   //如果type是类类型，则前面包含"class "，后面跟类名 
                    Method m = model.getClass().getMethod("get"+name); 
                    String value = (String) m.invoke(model);    //调用getter方法获取属性值 
                    if(value != null){ 
                        System.out.println("attribute value:"+value); 
                    } 
                } 
                if(type.equals("class java.lang.Integer")){      
                    Method m = model.getClass().getMethod("get"+name); 
                    Integer value = (Integer) m.invoke(model); 
                    if(value != null){ 
                        System.out.println("attribute value:"+value); 
                    } 
                } 
                if(type.equals("class java.lang.Short")){      
                    Method m = model.getClass().getMethod("get"+name); 
                    Short value = (Short) m.invoke(model); 
                    if(value != null){ 
                        System.out.println("attribute value:"+value);                    } 
                }        
                if(type.equals("class java.lang.Double")){      
                    Method m = model.getClass().getMethod("get"+name); 
                    Double value = (Double) m.invoke(model); 
                    if(value != null){                     
                        System.out.println("attribute value:"+value);   
                    } 
                }                   
                if(type.equals("class java.lang.Boolean")){ 
                    Method m = model.getClass().getMethod("get"+name);     
                    Boolean value = (Boolean) m.invoke(model); 
                    if(value != null){                       
                        System.out.println("attribute value:"+value); 
                    } 
                } 
                if(type.equals("class java.util.Date")){ 
                    Method m = model.getClass().getMethod("get"+name);                     
                    Date value = (Date) m.invoke(model); 
                    if(value != null){ 
                        System.out.println("attribute value:"+value.toLocaleString()); 
                    } 
                }                 
            } 
    }