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注:在项目中, 我使用原生的ajax请求数据的时候, JSONObject没能帮我解析, 当却不给我报错, 我是在junit单元测试中测试的时候, 发现的.发现好多时候, 特别是通过ajax请求, 不给我们报错,很郁闷, 特别是ie, 有些问题, 得借助FireFox的返回结果分析.
当然, FireFox有时也没报错.
异常栈:
net.sf.json.JSONException: java.lang.reflect.InvocationTargetException at net.sf.json.JSONObject._fromBean(JSONObject.java:953) at net.sf.json.JSONObject.fromObject(JSONObject.java:192) at net.sf.json.JSONObject._processValue(JSONObject.java:2774) at net.sf.json.JSONObject._setInternal(JSONObject.java:2798) at net.sf.json.JSONObject.setValue(JSONObject.java:1507) at net.sf.json.JSONObject._fromBean(JSONObject.java:940) at net.sf.json.JSONObject.fromObject(JSONObject.java:192) at net.sf.json.JSONObject._processValue(JSONObject.java:2774) at net.sf.json.JSONObject.processValue(JSONObject.java:2833) at net.sf.json.JSONObject.element(JSONObject.java:1871) at net.sf.json.JSONObject.element(JSONObject.java:1849) at net.sf.json.JSONObject.put(JSONObject.java:2466) at sys_bd.json.JsonService.getJsonStr(JsonService.java:8) at com.bd.action.LockAction.queryMapByAttSuccess(LockAction.java:442) at com.db.action.LockActionTest.testEncapsulateLockAsJson(LockActionTest.java:40) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20) at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184) at org.junit.runners.ParentRunner.run(ParentRunner.java:236) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.commons.beanutils.PropertyUtilsBean.invokeMethod(PropertyUtilsBean.java:1773) at org.apache.commons.beanutils.PropertyUtilsBean.getSimpleProperty(PropertyUtilsBean.java:1132) at org.apache.commons.beanutils.PropertyUtilsBean.getNestedProperty(PropertyUtilsBean.java:686) at org.apache.commons.beanutils.PropertyUtilsBean.getProperty(PropertyUtilsBean.java:715) at org.apache.commons.beanutils.PropertyUtils.getProperty(PropertyUtils.java:290) at net.sf.json.JSONObject._fromBean(JSONObject.java:928) ... 37 more Caused by: java.lang.IllegalArgumentException at java.sql.Date.getHours(Date.java:182) ... 47 more
该问题描述了使用json封装对象的时候, 对于日期格式,报该错.
有的人说将对象的getter指定包(java.uti.Date)就可以, 但是我测试发现不可以.
我的解决方案是参考: http://segmentfault.com/q/1010000000095526
工具类为:使用config对象
package sys_bd.json; import java.text.SimpleDateFormat; import net.sf.json.JSONObject; import net.sf.json.JsonConfig; import net.sf.json.processors.JsonValueProcessor; public class JsonService { private JsonService() {} private static final JsonConfig jsonConfig = init(); private static JsonConfig init() { JsonConfig jsonConfig = new JsonConfig(); jsonConfig.registerJsonValueProcessor(java.util.Date.class, new JsonValueProcessor() { private SimpleDateFormat sd = new SimpleDateFormat( "yyyy-MM-dd"); public Object processObjectValue(String key, Object value, JsonConfig jsonConfig) { return value == null ? "" : sd.format(value); } public Object processArrayValue(Object value, JsonConfig jsonConfig) { return null; } }); return jsonConfig; } public static String getJsonStr(String key, Object value) { //使用config对象. JSONObject jsonObject = JSONObject.fromObject(value, jsonConfig); return jsonObject.toString(); } }
json解析异常 - net.sf.json.JSONException: java.lang.reflect.InvocationTargetException
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原文地址：http://www.cnblogs.com/listened/p/4437722.html
