java反射调用时如果返回值是整型数组怎么处理？-PHP中文网问答

想通过java的反射功能将javaBean转换成map：

    public static Map<String, String> toMap(Object javaBean) {

        Map<String, String> result = new HashMap<>();
        Method[] methods = javaBean.getClass().getDeclaredMethods();

        for (Method method : methods) {
            try {
                if (method.getName().startsWith("get")) {
                    String field = method.getName();
                    field = field.substring(field.indexOf("get") + 3);
                    field = field.toLowerCase().charAt(0) + field.substring(1);

                    Object value = method.invoke(javaBean, (Object[]) null);
                    String val = "";
                    if (value != null) {
                        if (value.getClass().isArray()) {
                            Object[] array = (Object[]) value;
                            val = "[";
                            boolean flag = true;
                            for (Object o : array) {
                                if (flag) {
                                    flag = false;
                                    val += o.toString();
                                } else {
                                    val += ", " + o.toString();
                                }
                            }
                            val += "]";
                        } else {
                            val = value.toString();
                        }
                        result.put(field, val);
                    }
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        return result;

如果javabean中有整型数组的话，以上程序就无法正常使用了，比如如下的javabean:

public class Student {

    private int id;
    private String name;
    private String desc;
    private String[] phones;
    private List<String> addresses;
    private int[] scores;
    
    //getter and setter ...

其中对scores的转换会遇到问题：

java.lang.ClassCastException: [I cannot be cast to [Ljava.lang.Object;

请问我该如何处理原始类型的数组？

if (value.getClass().isArray()) { int length = Array.getLength(value); System.out.println(length); StringBuffer buffer = new StringBuffer(); buffer.append('['); for (int i = 0; i < length; i++) { Object v = Array.get(value, i).toString(); buffer.append(v == null ? "<null>" : v.toString()) .append(", "); } if (buffer.length() > 1) { // 大于 1 说明除了 '[' 外还有其它的，即数据不为空 buffer.delete(buffer.length() - 2, buffer.length()); } buffer.append(']'); val = buffer.toString(); System.out.println(val); }