java.lang.UnsupportedOperationException用于从javafx tableview中删除一行（java实现删除）

25-02-11 19

如果您对java.lang.UnsupportedOperationException用于从javafxtableview中删除一行感兴趣，那么本文将是一篇不错的选择，我们将为您详在本文中，您将会了解

如果您对java.lang.UnsupportedOperationException用于从javafx tableview中删除一行感兴趣，那么本文将是一篇不错的选择，我们将为您详在本文中，您将会了解到关于java.lang.UnsupportedOperationException用于从javafx tableview中删除一行的详细内容，我们还将为您解答java实现删除的相关问题，并且为您提供关于android – java.lang.UnsupportedOperationException：AdapterView不支持addView(View,LayoutParams)、android-Canvas中的java.lang.UnsupportedOperationException、Arrays.asList()报错java.lang.UnsupportedOperationException、Cause: java.lang.UnsupportedOperationException的有价值信息。

本文目录一览：

java.lang.UnsupportedOperationException用于从javafx tableview中删除一行（java实现删除）
android – java.lang.UnsupportedOperationException：AdapterView不支持addView(View,LayoutParams)
android-Canvas中的java.lang.UnsupportedOperationException
Arrays.asList()报错java.lang.UnsupportedOperationException
Cause: java.lang.UnsupportedOperationException

java.lang.UnsupportedOperationException用于从javafx tableview中删除一行（java实现删除）

我试图从javafx的tableview中删除所选记录。以下是我如何用数据填充表的方法：

public void setMainApp(MainAppClass mainApp){    this.mainApp = mainApp;    FilteredList<FileModel> filteredData = new FilteredList<>(mainApp.getFileData(), p -> true);    // 2. Set the filter Predicate whenever the filter changes.    filterField.textProperty().addListener((observable, oldValue, newValue) -> {        filteredData.setPredicate(files -> {            // If filter text is empty, display all files.            if (newValue == null || newValue.isEmpty()) {                return true;            }            String lowerCaseFilter = newValue.toLowerCase();            if (files.getFileSubject().toLowerCase().indexOf(lowerCaseFilter) != -1) {                return true; // Filter matches Subject.            }                else if (files.getFileDate().toLowerCase().indexOf(lowerCaseFilter) != -1) {                return true; // Filter matches last name.            }            return false; // Does not match.        });    });    // 3. Wrap the FilteredList in a SortedList.     SortedList<FileModel> sortedData = new SortedList<>(filteredData);    // 4. Bind the SortedList comparator to the TableView comparator.    sortedData.comparatorProperty().bind(fileTable.comparatorProperty());    // 5. Add sorted (and filtered) data to the table.    fileTable.setItems(sortedData);}

那就是我删除记录的方式：

@FXMLprivate void deleteFile() {    int selectedIndex = fileTable.getSelectionModel().getSelectedIndex();    if (selectedIndex >= 0) {        fileTable.getItems().remove(selectedIndex);    } else {        // Nothing selected.        Alert alert = new Alert(AlertType.WARNING);        alert.initOwner(mainApp.getPrimaryStage());        alert.setTitle("No Selection");        alert.showAndWait();    }}

但这会带来java.lang.UnsupportedOperationException错误。我在示例项目中做了同样的事情，一切顺利。那么，如何解决此问题？

答案1

小编典典

从基础列表而不是过滤/排序列表中删除数据：

FileModel selectedItem = fileTable.getSelectionModel().getSelectedItem();if (selectedItem != null) {    mainApp.getFileData().remove(selectedItem);}

android – java.lang.UnsupportedOperationException：AdapterView不支持addView(View,LayoutParams)

我正在使用在网络上找到的Expandable ListView示例

活动：

public class ExpandableListViewActivity extends ExpandableListActivity {
    /**
     * strings for group elements
     */
    static final String arrGroupelements[] = { "India","Australia","England","South Africa" };

    /**
     * strings for child elements
     */
    static final String arrChildelements[][] = {
            { "Sachin Tendulkar","Raina","Dhoni","Yuvi" },{ "Ponting","Adam Gilchrist","Michael Clarke" },{ "Andrew Strauss","kevin Peterson","Nasser Hussain" },{ "Graeme Smith","AB de villiers","Jacques Kallis" } };

    displayMetrics metrics;
    int width;
    ExpandableListView expList;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        expList = getExpandableListView();
        metrics = new displayMetrics();
        getwindowManager().getDefaultdisplay().getMetrics(metrics);
        width = metrics.widthPixels;
        // this code for adjusting the group indicator into right side of the
        // view
        expList.setIndicatorBounds(width - GetDipsFromPixel(50),width
                - GetDipsFromPixel(10));
        expList.setAdapter(new ExpAdapter(this));

        expList.setonGroupExpandListener(new OnGroupExpandListener() {
            public void onGroupExpand(int groupPosition) {
                Log.e("onGroupExpand","OK");
            }
        });

        expList.setonGroupCollapseListener(new OnGroupCollapseListener() {
            public void onGroupCollapse(int groupPosition) {
                Log.e("onGroupCollapse","OK");
            }
        });

        expList.setonChildClickListener(new OnChildClickListener() {
            public boolean onChildClick(ExpandableListView parent,View v,int groupPosition,int childPosition,long id) {
                Log.e("OnChildClickListener","OK");
                return false;
            }

        });
    }

    public int GetDipsFromPixel(float pixels) {
        // Get the screen's density scale
        final float scale = getResources().getdisplayMetrics().density;
        // Convert the dps to pixels,based on density scale
        return (int) (pixels * scale + 0.5f);
    }
}

适配器：

public class ExpAdapter extends Baseexpandablelistadapter {

    private Context myContext;

    public ExpAdapter(Context context) {
        myContext = context;
    }

    public Object getChild(int groupPosition,int childPosition) {
        return null;
    }

    public long getChildId(int groupPosition,int childPosition) {
        return 0;
    }

    public View getChildView(int groupPosition,boolean isLastChild,View convertView,ViewGroup parent) {

        if (convertView == null) {
            LayoutInflater inflater = (LayoutInflater) myContext
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = inflater.inflate(R.layout.child_row,null);
        }

        TextView tvPlayerName = (TextView) convertView
                .findViewById(R.id.tvPlayerName);
        tvPlayerName
                .setText(ExpandableListViewActivity.arrChildelements[groupPosition][childPosition]);

        return convertView;
    }

    public int getChildrenCount(int groupPosition) {
        return ExpandableListViewActivity.arrChildelements[groupPosition].length;
    }

    public Object getGroup(int groupPosition) {
        return null;
    }

    public int getGroupCount() {
        return ExpandableListViewActivity.arrGroupelements.length;
    }

    public long getGroupId(int groupPosition) {
        return 0;
    }

    public View getGroupView(int groupPosition,boolean isExpanded,ViewGroup parent) {

        if (convertView == null) {
            LayoutInflater inflater = (LayoutInflater) myContext
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = inflater.inflate(R.layout.group_row,null);
        }

        TextView tvGroupName = (TextView) convertView
                .findViewById(R.id.tvGroupName);
        tvGroupName
                .setText(ExpandableListViewActivity.arrGroupelements[groupPosition]);

        return convertView;
    }

    public boolean hasstableIds() {
        return false;
    }

    public boolean isChildSelectable(int groupPosition,int childPosition) {
        return true;
    }
}

main.xml中：

<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <ExpandableListView
        android:id="@+id/android:list"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:groupIndicator="@drawable/group_indicator" >

        <TextView
            android:id="@+id/android:empty"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:text="No Items" >
        </TextView>
    </ExpandableListView>

</LinearLayout>

我试过这个解决方案,但没有工作:(

Android: Custom ListAdapter extending BaseAdapter crashes on application launch

它被告知要添加第三个参数“假”,到inflater.inflate(R.layout.group_row,null,false);

解决方法

将TextView移动到ExpandableListView元素之外：

<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <ExpandableListView
        android:id="@+id/android:list"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:groupIndicator="@drawable/group_indicator" >
    </ExpandableListView>
    <TextView
            android:id="@+id/android:empty"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:text="No Items" >
    </TextView>
</LinearLayout>

AdapterView的子类(如ExpandableListView)不能在xml布局中拥有子项(就像您在布局中所做的那样).

android-Canvas中的java.lang.UnsupportedOperationException

我在应用程序中使用了自定义ImageView.但这表明

java.lang.UnsupportedOperationException

在代码canvas.clipPath(clipPath)中.

我不知道为什么会收到这个错误.它在某些手机上可以完美运行.

public class Gma_CustomImage2 extends ImageView {

    public static float radius = 10.0f;  

    public Gma_CustomImage2(Context context) {
        super(context);
    }

    public Gma_CustomImage2(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public Gma_CustomImage2(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        Path clipPath = new Path();
        RectF rect = new RectF(0, 0, this.getWidth(), this.getHeight()+13.0f);
        clipPath.addRoundRect(rect, radius, radius, Path.Direction.CW);
        canvas.clipPath(clipPath);
        super.onDraw(canvas);
    }
}

LogCat

08-08 12:04:47.963: E/AndroidRuntime(5710): FATAL EXCEPTION: main
08-08 12:04:47.963: E/AndroidRuntime(5710): java.lang.UnsupportedOperationException
08-08 12:04:47.963: E/AndroidRuntime(5710):     at    android.view.GLES20Canvas.clipPath(GLES20Canvas.java:408)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at com.example.meetap.Gma_CustomImage2.onDraw(Gma_CustomImage2.java:34)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.View.draw(View.java:10982)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.View.getdisplayList(View.java:10421)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.ViewGroup.dispatchGetdisplayList(ViewGroup.java:2597)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.View.getdisplayList(View.java:10384)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.ViewGroup.dispatchGetdisplayList(ViewGroup.java:2597)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.View.getdisplayList(View.java:10384)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.ViewGroup.dispatchGetdisplayList(ViewGroup.java:2597)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.View.getdisplayList(View.java:10384)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.ViewGroup.drawChild(ViewGroup.java:2850)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.View.draw(View.java:10985)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.widget.FrameLayout.draw(FrameLayout.java:450)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.widget.ScrollView.draw(ScrollView.java:1524)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.View.getHardwareLayer(View.java:10220)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.ViewGroup.drawChild(ViewGroup.java:2863)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at com.example.meetap.Gma_CustomViewBehind.dispatchDraw(Gma_CustomViewBehind.java:121)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.View.getdisplayList(View.java:10419)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.ViewGroup.drawChild(ViewGroup.java:2850)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.View.getdisplayList(View.java:10419)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.ViewGroup.dispatchGetdisplayList(ViewGroup.java:2597)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.View.getdisplayList(View.java:10384)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.ViewGroup.dispatchGetdisplayList(ViewGroup.java:2597)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.View.getdisplayList(View.java:10384)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.ViewGroup.dispatchGetdisplayList(ViewGroup.java:2597)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.View.getdisplayList(View.java:10384)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.HardwareRenderer$glrenderer.draw(HardwareRenderer.java:842)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.ViewRootImpl.draw(ViewRootImpl.java:1935)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1659)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2467)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.os.Handler.dispatchMessage(Handler.java:99)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.os.Looper.loop(Looper.java:137)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at android.app.ActivityThread.main(ActivityThread.java:4424)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at java.lang.reflect.Method.invokeNative(Native Method)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at java.lang.reflect.Method.invoke(Method.java:511)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
08-08 12:04:47.963: E/AndroidRuntime(5710):     at dalvik.system.NativeStart.main(Native Method)

解决方法:

使用此代码：

if (Build.VERSION.SDK_INT > Build.VERSION_CODES.HONEYCOMB) {
   Gma_CustomImage.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
}

Arrays.asList()报错java.lang.UnsupportedOperationException

问题：

使用工具类Arrays.asList()方法把数组转换成集合时,不能使用修改集合相关的方法，比如add，remove。这个ArrayList是Arrays类自己定义的一个内部类！这个内部类没有实现add()、remove()方法，而是直接使用它的父类

的相应方法。而父类中的add()和remove()是直接抛出异常的！

源码：

解决方法：

总结：

1.Arrays.asList()底层其实还是数组;

2.如果使用了Arrays.asList()的话,最好不要使用其集合的操作方法;

3. List list = new ArrayList<>(Arrays.asList(“a”, “b”, “c”))可以在外面这样包一层真正的ArrayList。

Cause: java.lang.UnsupportedOperationException

运行web项目的时候出现以下错误：

### Cause: java.lang.UnsupportedOperationException
   at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:77)
   at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:446)
   at com.sun.proxy.$Proxy74.selectList(Unknown Source)
   at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:230)
   at org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:137)
   at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:75)
   at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:59)
   at com.sun.proxy.$Proxy81.getEnjoyCourseByUser(Unknown Source)
   at com.ros.serviceimpl.CourseServiceImpl.getCourseByEngoy(CourseServiceImpl.java:1168)
   at com.ros.controller.CourseController.getCourseByEngoy(CourseController.java:427)
   at com.ros.controller.CourseController$$FastClassBySpringCGLIB$$8a9731c4.invoke(<generated>)
   at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
   at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:669)
   at com.ros.controller.CourseController$$EnhancerBySpringCGLIB$$3f51ab5d.getCourseByEngoy(<generated>)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:498)
   at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
   at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
   at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97)
   at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
   at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
   at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
   at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)
   at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
   at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
   at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
   at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
   at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
   at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61)
   at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
   at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
   at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
   at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
   at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)
   at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
   at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
   at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
   at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:387)
   at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
   at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
   at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
   at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
   at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:108)
   at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
   at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81)
   at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
   at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
   at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
   at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
   at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803)
   at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
   at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
   at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459)
   at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
   at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.ibatis.exceptions.PersistenceException:
### Error querying database. Cause: java.lang.UnsupportedOperationException
### The error may exist in file [F:\idea\ros1.0\target\classes\mybatis\mapper\CourseMapper.xml]
### The error may involve com.ros.dao.CourseDao.getEnjoyCourseByUser
### The error occurred while handling results
### SQL: SELECT ros_course.id, ros_course.c_image AS image, ros_course.cname, ros_course.remark, ros_course.is_favorite AS isFavorite, ros_course.is_remark AS isRemark, ros_course.classify, ros_course.price, ros_course.visit, ros_course.update_time AS updateTime FROM ros_course WHERE id IN (   SELECT DISTINCT    course_id   FROM    user_course_chartor   WHERE    user_id = ? ) and c_type=? LIMIT ?
### Cause: java.lang.UnsupportedOperationException
   at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30)
   at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:150)
   at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:498)
   at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433)
   ... 80 more
Caused by: java.lang.UnsupportedOperationException
   at org.apache.ibatis.reflection.wrapper.CollectionWrapper.findProperty(CollectionWrapper.java:48)
   at org.apache.ibatis.reflection.MetaObject.findProperty(MetaObject.java:85)
   at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.createAutomaticMappings(DefaultResultSetHandler.java:488)
   at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.applyAutomaticMappings(DefaultResultSetHandler.java:512)
   at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getRowValue(DefaultResultSetHandler.java:397)
   at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValuesForSimpleResultMap(DefaultResultSetHandler.java:351)
   at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValues(DefaultResultSetHandler.java:326)
   at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSet(DefaultResultSetHandler.java:299)
   at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSets(DefaultResultSetHandler.java:192)
   at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:64)
   at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:79)
   at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:63)
   at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:324)
   at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156)
   at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109)
   at com.github.pagehelper.PageInterceptor.intercept(PageInterceptor.java:136)
   at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:61)
   at com.sun.proxy.$Proxy111.query(Unknown Source)
   at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148)
   ... 86 more
经过排查可以发现是mybatis中的返回数据错误

在dao的函数定义如下：

在mapper中映射为

调整为：

ok，这个错误解决完成

关于java.lang.UnsupportedOperationException用于从javafx tableview中删除一行和java实现删除的介绍现已完结，谢谢您的耐心阅读，如果想了解更多关于android – java.lang.UnsupportedOperationException：AdapterView不支持addView(View,LayoutParams)、android-Canvas中的java.lang.UnsupportedOperationException、Arrays.asList()报错java.lang.UnsupportedOperationException、Cause: java.lang.UnsupportedOperationException的相关知识，请在本站寻找。

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