小编Mar*_*nha的帖子

我试图用连接执行HQL删除..很快搜索后我发现我需要创建一个查询,就像这里建议的那样:

http://dasunhegoda.com/1093-you-cant-specify-target-table-table_name-for-update-in-from-clause/104/

这是我的查询:

    dao.executeByHql(
        "DELETE FROM FinalGradeResult e WHERE e.id IN "
        + "( SELECT id FROM "
            + "( SELECT x FROM FinalGradeResult x " 
            + "where x.student.id = :studentId "
            + " AND x.classDiscipline IN " + 
                + "(SELECT cd from ClassDiscipline cd " 
                + " where cd.clazz.id = :clazzId ) ) as X )",
    new HqlParameter("studentId", student.getId()), 
    new HqlParameter("clazzId", from.getId()));

但我一直收到这个错误:

org.hibernate.hql.internal.ast.QuerySyntaxException: unexpected token:( near line 1, column 94 [DELETE FROM xxxxxxxxxxxx.entity.FinalGradeResult e WHERE e.id IN ( …

我正在尝试在Android上运行react-native测试应用.

我让设备运行,并且反应原生运行:

Marco@Marco-PC MINGW64 /d/workspace/ReactNativeTest
$ react-native start

但出于某种原因我执行时:

react-native run-android

我收到此错误:

(node:3868) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 2): TypeError: Cannot read property 'message' of undefined

请查看此截图:

请帮我设置这个环境？

编辑尝试遵循本指南:https://facebook.github.io/react-native/releases/next/docs/getting-started.html

编辑2根据要求,我发布了完整的堆栈:

:app:zipalignDebug UP-TO-DATE
:app:assembleDebug UP-TO-DATE
:app:installDebug
Installing APK 'app-debug.apk' on 'emulator-5554 - 6.0'
Unable to install D:\workspace\ReactNativeTest\android\app\build\outputs\apk\app-debug.apk
com.android.ddmlib.InstallException: Failed to establish session
        at com.android.ddmlib.Device.installPackages(Device.java:894)
        at com.android.builder.testing.ConnectedDevice.installPackages(ConnectedDevice.java:113)
        at com.android.builder.testing.ConnectedDevice$installPackages$0.call(Unknown Source)
        at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108)
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:128)
        at com.android.build.gradle.internal.tasks.InstallVariantTask.install(InstallVariantTask.groovy:119)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown …

我的 MySQL 数据库中有一个表，它有一个日期列：

+-------------------+---------------+------+-----+---------+----------------+
| Field             | Type          | Null | Key | Default | Extra          |
+-------------------+---------------+------+-----+---------+----------------+
| id                | bigint(20)    | NO   | PRI | NULL    | auto_increment |
| type              | varchar(50)   | NO   |     | NULL    |                |
| expiration        | date          | NO   |     | NULL    |                |

我正在使用带有 JPA 的 MySQL 来保存日期。我有一个功能，用户可以选择一个最终的日期范围，它会得到所有的日期。

查看此代码（带有一堆 SYSO）以尝试查看发生了什么...

@Override
    protected DateTime nextReference(DateTime reference) {
        System.out.println("Reference: " + reference.toString("dd-MM-YYYY"));
        DateTime plus = reference.plusMonths(1);
        System.out.println("One month from now: " + …

我正在尝试使用selectOneMenu创建一个简单的复合组件......这非常简单:

<cc:implementation>
    <h:panelGrid columns="2">
        <p:outputLabel for="#{cc.attrs.fieldId}" value="#{cc.attrs.fieldLabel}"/>
        <p:selectOneMenu id="#{cc.attrs.fieldId}" required="#{cc.attrs.required}" converter="#{cc.attrs.converter}" value="#{cc.attrs.targetValue}">
                <f:selectItem itemLabel="#{msg['label.selecione.item']}" itemValue="" />
                <f:selectItems value="#{cc.attrs.listValue}"/>
        </p:selectOneMenu>
    </h:panelGrid>          
</cc:implementation>

所以,问题是我试图通过转换器!这是一个ENUM转换器(使用@FacesConverter(value ="tipoCampoConverter")注释扩展EnumConverter)

错误是:javax.el.E​​LException:无法将类型为java.lang.String的tipoCampoConverter转换为接口javax.faces.convert.Converter

**编辑:

一些额外的信息:

我尝试使用和不使用'type'声明属性:

    <cc:attribute name="converter" required="true" type="javax.faces.convert.Converter"/>

更多信息:INFO:启动Servlet引擎:Apache Tomcat/7.0.12 INFO:初始化Mojarra 2.1.10 INFO:在PrimeFaces上运行3.4.2 INFO:在PrimeFaces Extensions上运行0.6.1

:)