显示下载完成，但是没有下载文件

需要选择图片格式，默认的会报错。

java.util.concurrent.ExecutionException: java.lang.NullPointerException: Cannot invoke "String.toLowerCase()" because "oriImgType" is null
	at java.base/java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:396)
	at java.base/java.util.concurrent.CompletableFuture.get(CompletableFuture.java:2073)
	at com.jmd.task.TaskStepFunc.tileDownload(TaskStepFunc.java:234)
	at com.jmd.task.TaskExecFunc$3.doInBackground(TaskExecFunc.java:166)
	at com.jmd.task.TaskExecFunc$3.doInBackground(TaskExecFunc.java:155)
	at java.desktop/javax.swing.SwingWorker$1.call(SwingWorker.java:304)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.desktop/javax.swing.SwingWorker.run(SwingWorker.java:343)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
	at java.base/java.lang.Thread.run(Thread.java:840)
Caused by: java.lang.NullPointerException: Cannot invoke "String.toLowerCase()" because "oriImgType" is null
	at com.jmd.http.HttpDownload.saveImage(HttpDownload.java:59)
	at com.jmd.http.HttpDownload.downloadTile(HttpDownload.java:27)
	at com.jmd.async.task.executor.inst.TileDownloadExecInst.downloadTile(TileDownloadExecInst.java:173)
	at com.jmd.async.task.executor.inst.TileDownloadExecInst.checkAndDownload(TileDownloadExecInst.java:135)
	at com.jmd.async.task.executor.inst.TileDownloadExecInst.start(TileDownloadExecInst.java:103)
	at com.jmd.async.task.executor.TileDownloadTask.exec(TileDownloadTask.java:27)
	at jdk.internal.reflect.GeneratedMethodAccessor20.invoke(Unknown Source)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:568)
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:351)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:196)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:765)
	at org.springframework.aop.interceptor.AsyncExecutionInterceptor.lambda$invoke$0(AsyncExecutionInterceptor.java:113)
	at org.springframework.util.concurrent.FutureUtils.lambda$toSupplier$0(FutureUtils.java:74)
	at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768)
	... 3 more
[下载完成]

Crimson/地图下载器

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Crimson/地图下载器 .gitee-modal { width: 500px !important; }

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