很简单直接的生成的方式，因为不存在修修改改的情况，如果是按手工一个一个参数去set有个POJO十几个变量，简直要命，通过这个就可以简单快速的生成一个可用的POJO
protected <T> T generator(T t)
{
Class clazz = t.getClass();
Field[] fields = clazz.getDeclaredFields();
Field[] fields1 = clazz.getSuperclass().getDeclaredFields();
Field[] fields2 = new Field[fields.length + fields1.length];
System.arraycopy(fields, 0, fields2, 0, fields.length);
System.arraycopy(fields1, 0, fields2, fields.length, fields1.length);
for (Field field : fields2)
{
try
{
if (field.getModifiers() == 26 || field.getModifiers() == 25)
{
continue;
}
else if (field.getType().getSimpleName().equals(String.class.getSimpleName()))
{
field.setAccessible(true);
field.set(t, "insertTest");
}
else if (field.getType().getSimpleName().equals(Long.class.getSimpleName()) ||
field.getType().getSimpleName().equals(long.class.getSimpleName()))
{
field.setAccessible(true);
field.set(t, 10000L);
}
else if (field.getType().getSimpleName().equals(Integer.class.getSimpleName()) ||
field.getType().getSimpleName().equals(int.class.getSimpleName()))
{
field.setAccessible(true);
field.set(t, 1);
}
else if (field.getType().getSimpleName().equals(Boolean.class.getSimpleName()) ||
field.getType().getSimpleName().equals(boolean.class.getSimpleName()))
{
field.setAccessible(true);
field.set(t, true);
}
else if (field.getType().getSimpleName().equals(Date.class.getSimpleName()))
{
field.setAccessible(true);
field.set(t, new Date());
}
else if (field.getType().getName().startsWith("["))
{
field.setAccessible(true);
Object abc = Array.newInstance(field.getType().getComponentType(), 1);
Object[] abcs = (Object[])abc;
abcs[0] = generator(field.getType().getComponentType().newInstance());
field.set(t, abcs);
}
else
{
field.setAccessible(true);
field.set(t, generator(field.getType().newInstance()));
}
}
catch (IllegalAccessException | InstantiationException e)
{
e.printStackTrace();
//do nothing
}
}
return t;
}
public static void toString(Map<String, Object> map)
{
for (Map.Entry<String, Object> entry : map.entrySet())
{
System.out.println("key=" + entry.getKey() + "|" + " value=" + entry.getValue());
}
System.out.println(
"=================================================================a map=============================================");
}
public static void toString(Object o)
{
Class clazz = o.getClass();
Field[] fields = clazz.getDeclaredFields();
try
{
StringBuilder sb = new StringBuilder();
for (Field field : fields)
{
if (field.getType().getName().startsWith("[L"))
{
field.setAccessible(true);
Object[] a = (Object[])field.get(o);
for (Object t : a)
{
toString(t);
}
}
else if (field.getModifiers() != (Modifier.PRIVATE + Modifier.STATIC + Modifier.FINAL))
{
field.setAccessible(true);
sb.append(field.getName());
sb.append("=");
sb.append(field.get(o) != null ? field.get(o).toString() : "null");
sb.append("\r\n");
}
}
System.out.println(sb.toString());
System.out.println(
"=================================================================a Object=============================================");
}
catch (Exception e)
{
e.printStackTrace();
}
}
public void toString(Object... objects)
{
for (Object o : objects)
{
toString(o);
}
}