ajax請求json資料異常：nested exception is net.sf.json.JSONException: java.lang.reflect.InvocationTargetException] with root cause

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ajax請求json資料異常：nested exception is net.sf.json.JSONException: java.lang.reflect.InvocationTargetException] with root cause1.異常原因：所請求的json資料中包含java.util.date資料類型，但是在後台並沒有將其格式轉換2.解決方案：添加工具類DateJsonValueProcessor 

import java.text.SimpleDateFormat;import net.sf.json.JsonConfig;import net.sf.json.processors.JsonValueProcessor;public class DateJsonValueProcessor implements JsonValueProcessor{    private String format;    public DateJsonValueProcessor(String format) {        this.format = format;    }    public Object processArrayValue(Object value, JsonConfig jsonConfig) {        return null;    }    public Object processObjectValue(String key, Object value,            JsonConfig jsonConfig) {        if (value == null) {            return "";        }        if (value instanceof java.sql.Timestamp) {            String str = new SimpleDateFormat(format)                    .format((java.sql.Timestamp) value);            return str;        }        if (value instanceof java.util.Date) {            String str = new SimpleDateFormat(format)                    .format((java.util.Date) value);            return str;        }        return value.toString();    }}

3.然後在你的controller中寫入

JsonConfig cfg = new JsonConfig();  cfg.registerJsonValueProcessor(java.util.Date.class,new DateJsonValueProcessor("yyyy-MM-dd"));  JSONArray json = JSONArray.fromObject(users, cfg);

    @RequestMapping("/getAllJsonUser")    public void getAllJsonUser(HttpServletResponse response){        List<User> users = userService.listAll();        System.out.println(users);        JsonConfig cfg = new JsonConfig();          cfg.registerJsonValueProcessor(java.util.Date.class,new DateJsonValueProcessor("yyyy-MM-dd"));          JSONArray json = JSONArray.fromObject(users, cfg);        JsonUtils.ajaxJson(json.toString(), response);    }

ok，問題解決

ajax請求json資料異常：nested exception is net.sf.json.JSONException: java.lang.reflect.InvocationTargetException] with root cause