HIBERNATE 实体映射问题
今天项目发现一个疑问就是hibernate 映射出来的实体bean对象,里面的属性变了样子。。以至于我在页面上引用,全是抛出EL表达式错误、没有找到相应的映射属性。
就比如标题:N_TITLE 这个是数据库的字段名,我们没有按照规范来写,直接写的N_TITLE,然而获取的时候,缺变成了n_TITLE 不晓得出在哪里的问题
但是比如:AO_TITLE 这样映射出来就没有问题,都是正常的。请问你们遇到这样的问题嘛。
今天还发现一个问题:N_TITLE 只能映射成NTitle ,写成nTitle它也会找不到get,set方法抛出org.hibernate.PropertyNotFoundException: Could not find a getter for nTITLE in class com.legend.shipment.PRISONWB 我晕了!记得hibernate里面的pojo可以随便的写啊?
具体我也想明白是为什么、也许是bug吧:
package com.bjhy.prisonweb.domain.module.base;import java.beans.Introspector;import java.lang.reflect.Method;public class Test {private static Method getterMethod(Class theClass, String propertyName) {Method[] methods = theClass.getDeclaredMethods();for (int i = 0; i < methods.length; i++)// only carry on if the method has no parametersif (methods[i].getParameterTypes().length == 0) {String methodName = methods[i].getName();// try "get"if (methodName.startsWith("get")) {String testStdMethod = Introspector.decapitalize(methodName.substring(3));String testOldMethod = methodName.substring(3);if (testStdMethod.equals(propertyName)|| testOldMethod.equals(propertyName)) {return methods[i];}}// if not "get" then try "is"/* * boolean isBoolean = * methods[i].getReturnType().equals(Boolean.class) || * methods[i].getReturnType().equals(boolean.class); */if (methodName.startsWith("is")) {String testStdMethod = Introspector.decapitalize(methodName.substring(2));String testOldMethod = methodName.substring(2);if (testStdMethod.equals(propertyName)|| testOldMethod.equals(propertyName)) {return methods[i];}}}return null;}public static void main(String[] args) {System.out.println(getterMethod(BaseWebNews.class,"nType"));}}