JavaBean中Property命名不規范出現了問題：
public class StockGuessInfo {
?private String SN;
?private String A_NUM;
?public String getA_NUM() {
??return A_NUM;
?}
?public void setA_NUM(String a_num) {
??A_NUM = a_num;
?}
｝
這段代碼用Apache的Common中的Util反射就得不到預期的結果
<bean:write name="stockGuessActionForm" property="A_NUM" />?? 出現錯誤
<bean:write name="stockGuessActionForm" property="a_NUM" />?? 可以得到結果
//Apache的Common中的Util要求javaBean中Property變量要求兩個字母要大寫都大寫，小寫都小寫，否則反射失敗
NAME???成功
Name???失敗
NaME???失敗
＝＝＝＝＝＝＝＝＝＝＝＝＝＝
??? public static BeanInfo getBeanInfo(Class<?> beanClass)
?throws IntrospectionException
??? {
?if (!ReflectUtil.isPackageAccessible(beanClass)) {
???? return (new Introspector(beanClass, null, USE_ALL_BEANINFO)).getBeanInfo();
?}
...................
??? }??
??? private BeanInfo getBeanInfo() throws IntrospectionException {
?..........
?PropertyDescriptor pds[] = getTargetPropertyInfo();
?.........?
??? }
?private PropertyDescriptor[] getTargetPropertyInfo() {
?..........
?if{
?............
?}else {
???? // Apply some reflection to the current class.
???? // First get an array of all the public methods at this level
???? Method methodList[] = getPublicDeclaredMethods(beanClass);
???? // Now analyze each method.
???? for (int i = 0; i < methodList.length; i++) {
???????? Method method = methodList[i];
??if (method == null) {
????? continue;
??}
???????? // skip static methods.
??int mods = method.getModifiers();
??if (Modifier.isStatic(mods)) {
????? continue;
??}
???????? String name = method.getName();
???????? Class argTypes[] = method.getParameterTypes();
???????? Class resultType = method.getReturnType();
??int argCount = argTypes.length;
??PropertyDescriptor pd = null;
??if (name.length() <= 3 && !name.startsWith(IS_PREFIX)) {
????? // Optimization. Don't bother with invalid propertyNames.
????? continue;
??}
??try {
???????????? if (argCount == 0) {
????????? if (name.startsWith(GET_PREFIX)) {
????????????? // Simple getter
============================文問題就出現在這里 decapitalize(name.substring(3)=========
????pd = new PropertyDescriptor(decapitalize(name.substring(3)),
??????method, null);??????
???????????????? } else if (resultType == boolean.class && name.startsWith(IS_PREFIX)) {
????????????? // Boolean getter
???????????????????? pd = new PropertyDescriptor(decapitalize(name.substring(2)),
??????method, null);
????????? }
............................................
???}
?? }
?public static String decapitalize(String name) {
?if (name == null || name.length() == 0) {
???? return name;
?}
?if (name.length() > 1 && Character.isUpperCase(name.charAt(1)) &&
???Character.isUpperCase(name.charAt(0))){
???? return name;
?}
?char chars[] = name.toCharArray();
?chars[0] = Character.toLowerCase(chars[0]);
?return new String(chars);
??? }
//?pd = new PropertyDescriptor(decapitalize(name.substring(3)),
//就是在這里了decapitalize(name)中要求Property變量要求兩個字母要大寫都大寫，小寫都小寫，否則反射失敗
，否則反射失敗