JavaBean中Property命名不规范出现了问题：
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;
}
｝
这段代码用Apache的Common中的Util反射就得不到预期的结果
<bean:write name="stockGuessActionForm" property="A_NUM" /> 出现错误
<bean:write name="stockGuessActionForm" property="a_NUM" /> 可以得到结果
//Apache的Common中的Util要求javaBean中Property变量要求两个字母要大写都大写，小写都小写，否则反射失败
NAME 成功
Name 失败
NaME 失败
＝＝＝＝＝＝＝＝＝＝＝＝＝＝
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
============================文问题就出现在这里 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)),
//就是在这里了decapitalize(name)中要求Property变量要求两个字母要大写都大写，小写都小写，否则反射失败
，否则反射失败