对于想了解Type.GetType的读者,本文将是一篇不可错过的文章,我们将详细介绍“namespace.abClassName”返回null,并且为您提供关于''mapperHelper''ofbe
对于想了解Type.GetType的读者,本文将是一篇不可错过的文章,我们将详细介绍“ namespace.abClassName”返回null,并且为您提供关于''mapperHelper'' of bean class ... Does the parameter type of the setter match the return type of the getter?、Abstract Types && Parameterized Types、angular – TypeScript找不到名称’ClassName’,尽管导出了Ionic 3、Asp.net core Swagger custom UI page GetType().GetTypeInfo().Assembly.GetManifestResourceStream()的有价值信息。
本文目录一览:- Type.GetType(“ namespace.abClassName”)返回null(typeof null返回object)
- ''mapperHelper'' of bean class ... Does the parameter type of the setter match the return type of the getter?
- Abstract Types && Parameterized Types
- angular – TypeScript找不到名称’ClassName’,尽管导出了Ionic 3
- Asp.net core Swagger custom UI page GetType().GetTypeInfo().Assembly.GetManifestResourceStream()
Type.GetType(“ namespace.abClassName”)返回null(typeof null返回object)
这段代码:
Type.GetType("namespace.a.b.ClassName")
返回null
。
我有使用:
using namespace.a.b;
更新:
该类型存在,它在不同的类库中,我需要通过字符串名称来获取它。
答案1
小编典典Type.GetType("namespace.qualified.TypeName")
仅当在mscorlib.dll或当前正在执行的程序集中找到该类型时才起作用。
如果这两种情况都不成立,则需要一个程序集限定名称:
Type.GetType("namespace.qualified.TypeName, Assembly.Name")
''mapperHelper'' of bean class ... Does the parameter type of the setter match the return type of the getter?
Invalid property ''mapperHelper'' of bean class [org.mybatis.spring.mapper.MapperFactoryBean]: Bean property ''mapperHelper'' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?
起因:多模块项目 以前没有这个问题 这个版本因为需求 新增了一个模块 然后再这个新增的模块下创建了许多子模块 然后再项目里扫描的地方配置了多路径 本地启服务正常 测试环境第一次通过 docker 启动也正常 但是后续通过脚本部署启动就报这个错 需要每次手动删除容器删除镜像手动运行命令启动才行
网上查了 许多说是热部署插件的问题 但我们项目里压根就没有热部署
MybatisConfiguration里的配置: @MapperScans({@MapperScan("net.axx.bxx.*.mapper"),@MapperScan("net.axx.bxx.xxx.*.mapper")})
MapperScannerConfigurer里的配置: mapperScannerConfigurer.setBasePackage("net.axx.bxx.*.mapper,net.axx.bxx.xxx.*.mapper");
大佬们 怎么解决呀
Abstract Types && Parameterized Types
Abstract Types && Parameterized Types
Abstract Types(抽象类型)
Scala 的抽象类型成员 (Abstract Type Members) 没有和 Java 等同的。
两个语言中,类,接口 (Java), 特质 (Scala) 都可以有方法和字段作为成员。
Scala 的类 (class) 或特质 (trait) 可以有类型成员,下面例子是抽象类型成员:
object app_main extends App {
// 通过给出这两个成员的具体定义来对这个类型进行实例化
val abs = new AbsCell {
override type T = Int
override val init: T = 12
override var me: S = "liyanxin"
}
println(abs.getMe)
println(abs.getInit)
}
trait Cell {
// 抽象类型成员S
type S
var me: S
def getMe: S = me
def setMe(x: S): Unit = {
me = x
}
}
/**
* AbsCell 类既没有类型参数也没有值参数,
* 而是定义了一个抽象类型成员 T 和一个抽象值成员 init。
*/
abstract class AbsCell extends Cell {
//在子类内部具体化抽象类型成员S
override type S = String
// 抽象类型成员 T
type T
val init: T
private var value: T = init
def getInit: T = value
def setInit(x: T): Unit = {
value = x
}
}
运行并输出:
liyanxin
0
参考:http://alanwu.iteye.com/blog/483959
https://github.com/wecite/papers/blob/master/An-Overview-of-the-Scala-Programming-Language/5.Abstraction.md
关于下面两者的区别:
abstract class Buffer {
type T
val element: T
}
rather that generics, for example,
abstract class Buffer[T] {
val element: T
}
请见:http://stackoverflow.com/questions/1154571/scala-abstract-types-vs-generics
Parameterized Types(参数化类型)
Scala supports parameterized types, which are very similar to generics in Java. (We could use the two terms interchangeably(可交换的),
but it’s more common to use “parameterized types” in the Scala community and “generics” in the Java community.) The most obvious difference is in the
syntax, where Scala uses square brackets ([...] ), while Java uses angle brackets (<...>).
用类型参数化类
For example, a list of strings would be declared as follows:
class GenCell[T](init: T) {
private var value: T = init
def get: T = value
//Unit相当于返回void
def set(x: T): Unit = {
value = x
}
}
在上面的定义中,“T” 是一个类型参数,可被用在 GenCell 类和它的子类中。类参数可以是任意 (arbitrary) 的名字。用 [] 来包围,而不是用 () 来包围,用以和值参数进行区别。
用类型参数化函数
如下代码示例
class GenCell[T](init: T) {
private var value: T = init
def get: T = value
//Unit相当于返回void
def set(x: T): Unit = {
value = x
}
}
object app_main extends App {
//用T参数化函数
def swap[T](x: GenCell[T], y: GenCell[T]): Unit = {
val t = x.get;
x.set(y.get);
y.set(t)
}
val x: GenCell[Int] = new GenCell[Int](1)
val y: GenCell[Int] = new GenCell[Int](2)
swap[Int](x, y)
println(x.get)
println(y.get)
}
参考:https://github.com/wecite/papers/blob/master/An-Overview-of-the-Scala-Programming-Language/5.Abstraction.md
==============END==============
angular – TypeScript找不到名称’ClassName’,尽管导出了Ionic 3
从’@ ionic-native / android-permissions’导入{AndroidPermissions};
并在构造函数中声明(公共androidPermissions:AndroidPermissions),它给出了一个错误([ts]找不到名称’AndroidPermissions’.).
在app.module.ts中声明相同的插件并在Provider中声明时,它给出了错误
[ts] Type 'AndroidPermissionsOriginal' is not assignable to type 'Provider'. Type 'AndroidPermissionsOriginal' is missing the following properties from type 'FactoryProvider': provide,useFactory [2322]
阅读论坛后,我用ngx导入了这个插件.
import { AndroidPermissions } from '@ionic-native/android-permissions/ngx'
错误得到解决,但在调用它时会抛出错误
Uncaught (in promise): TypeError: Object(...) is not a function TypeError: Object(...) is not a function at AndroidPermissions.requestPermissions (http://192.168.0.13:8100/build/vendor.js:69796:154) at http://192.168.0.13:8100/build/main.js:138:32 at t.invoke (http://192.168.0.13:8100/build/polyfills.js:3:14976) at Object.onInvoke (http://192.168.0.13:8100/build/vendor.js:5134:33) at t.invoke (http://192.168.0.13:8100/build/polyfills.js:3:14916) at r.run (http://192.168.0.13:8100/build/polyfills.js:3:10143) at http://192.168.0.13:8100/build/polyfills.js:3:20242 at t.invokeTask (http://192.168.0.13:8100/build/polyfills.js:3:15660) at Object.onInvokeTask (http://192.168.0.13:8100/build/vendor.js:5125:33) at t.invokeTask (http://192.168.0.13:8100/build/polyfills.js:3:15581)
使用Network plugin和SMS plugin时发生了类似的错误.
还尝试将目标更改为es6和jib,以便在tsconfig.json中使用es2016但是注意到了.
下面是我的tsconfig.json
{ "compilerOptions": { "allowSyntheticDefaultImports": true,"declaration": false,"emitDecoratorMetadata": true,"experimentalDecorators": true,"lib": [ "dom","es2015" ],"module": "es2015","moduleResolution": "node","sourceMap": true,"target": "es5" },"include": [ "src/**/*.ts" ],"exclude": [ "node_modules","src/**/*.spec.ts","src/**/__tests__/*.ts" ],"compileOnSave": false,"atom": { "rewriteTsconfig": false } }
解决方法
https://ionicframework.com/docs/v3/native/android-permissions/
先删除
离子cordova插件删除cordova-plugin-android-permissions
重新加上它
$ionic cordova plugin add cordova-plugin-android-permissions
$npm install –save @ionic-native/android-permissions@4
Asp.net core Swagger custom UI page GetType().GetTypeInfo().Assembly.GetManifestResourceStream()

GetType().GetTypeInfo().Assembly.GetManifestResourceStream("<Solution Name><Page Name>.Hmtl") Read failure.
Solution: Change html build action of attributes to "Embedded resource".
关于Type.GetType和“ namespace.abClassName”返回null的问题我们已经讲解完毕,感谢您的阅读,如果还想了解更多关于''mapperHelper'' of bean class ... Does the parameter type of the setter match the return type of the getter?、Abstract Types && Parameterized Types、angular – TypeScript找不到名称’ClassName’,尽管导出了Ionic 3、Asp.net core Swagger custom UI page GetType().GetTypeInfo().Assembly.GetManifestResourceStream()等相关内容,可以在本站寻找。
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