新人报道，问题求解决：arcgis server for java adf 自定义task报错
0
[已解决问题]
解决于 2015-04-21 09:47
最近在学习 arcgis server for java，看到吴泳锋 王坚的arcgis server java adf 开发教程，就按照步骤来做。
在前端添加一个连接 ，弹出task：
<li class="menu-bar">
<a href="#" class="menu-header" title="query task" onclick="wma.toggleWindow('win_EsriTaskCell_queryTask');">
<span> query task </span>
</a>
</li>
task部分：
<a:task id="queryTask"
value="#{mapContext.attributes.queryTask}"
taskInfo="#{mapContext.attributes.queryTask.taskInfo}"
mapId="map1"
windowingSupport="true"
style="padding:0px;margin:0px;"/>
查询部分代码：
public void query(TaskEvent event) {
//System.out.println(this.getClass().getName() + ":query()");
WebContext webContext = event.getWebContext();
WebQuery webQuery = (WebQuery) webContext.getAttribute("query");
TextCriteria textCriteria = new TextCriteria();
textCriteria.setMaxRecordCount(100);
textCriteria.setSearchText(this.keyWord);
List<QueryResult> listQueryResult = webQuery.query(textCriteria, webQuery.getQueryLayers());
webContext.getWebGraphics().clearGraphics();
for (int i = 0; i < listQueryResult.size(); i++) {
QueryResult queryResult = listQueryResult.get(i);
queryResult.highlight();
}
webContext.refresh();
}
运行后，
但是在我的控制台却出现
警告: Error encountered while caching initial state of the application. This will prevent the application from optimizing session startup times.
java.io.NotSerializableException: asd.QueryTask
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1164)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:330)
at java.util.HashMap.writeObject(HashMap.java:1001)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:940)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1469)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1518)
at java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:422)
at com.esri.adf.web.data.WebContext.writeObject(WebContext.java:2147)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:940)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1469)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:330)
at java.util.ArrayList.writeObject(ArrayList.java:570)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:940)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1469)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1518)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1483)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:330)
at com.esri.adf.web.util.ADFFilter.a(ADFFilter.java:244)
at com.esri.adf.web.util.ADFFilter.doFilter(ADFFilter.java:130)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.esri.adf.web.util.ADFSessionTimeoutFilter.doFilter(ADFSessionTimeoutFilter.java:137)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:861)
at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:579)
at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1584)
at java.lang.Thread.run(Thread.java:662)
Could not load mediaLib accelerator wrapper classes. Continuing in pure Java mode.
不懂了。 如何解决 。。。 求大神指点。
最佳答案
1
添加如下的代码试试：
/** * this gets rid of exception for not using native acceleration */ static { System.setProperty("com.sun.media.jai.disableMediaLib", "true"); }
参考：get rid of "Could not find mediaLib accelerator wrapper classes"
奖励园豆：5
是在我的查询方法里加么？
很感谢
Could not load mediaLib accelerator wrapper classes. Continuing in pure Java mode.
这个错误没有了
