我有让我做这项工作的问题。 包含由几个信息组成的字符串
但是，在尝试将String写入文件以跟踪程序随时间的变化时，发生了拒绝访问错误。
语音写入到文件(字符串输入) throws Exception{
file file=new file (c :weather exports\ export.txt ' )；
if (！ file.exists () }
file.createNewFile (；
}
try{
infile.append(input；
inFile.newLine (；
}catch(exceptione ) {
e .打印堆栈跟踪(；
}
inFile.close (；
}
堆栈跟踪是：
jva.io.file not found exception : c : (weather exports (export.txt (accessisdenied ) ) ) ) )
jva.io.file not found exception : c : (weather exports (export.txt (accessisdenied ) ) ) ) )
at Java.io.file output stream.open append (本机方法) )。
at Java.io.file output stream.(unknown source )
at Java.io.filewriter.(unknown source )
atorg.weather alert.infomanipmethods.write to file (infomanipmethods.Java :58 )。
atorg.weather alert.form.action performed (form.Java :108 )。
at javax.swing.jtextfield.fireactionperformed (unknown source ) )。
at javax.swing.jtextfield.post actionevent (unknown source ) )。
at javax.swing.jtextfield $ notify action.action performed (unknown source ) )
at javax.swing.swing utilities.notify action (unknown source ) )。
at javax.swing.jcomponent.process key绑定(unknown source ) )。
at javax.swing.jcomponent.process key绑定(unknown source ) )。
at javax.swing.jcomponent.process keyevent (unknown source ) )。
at Java.awt.com ponent.process event (unknown source ) )。
at Java.awt.container.process event (unknown source ) )。
at Java.awt.com ponent.dispatcheventimpl (未知源) )。
at Java.awt.container.dispatcheventimpl (未知源) )。
at Java.awt.com ponent.dispatch event (unknown source ) )。
at Java.awt.keyboardfocusmanager.redispatchevent (unknown source ) )。
at Java.awt.defaultkeyboardfocusmanager.dispatch keyevent (unknown source ) )。
at Java.awt.defaultkeyboardfocusmanager.predispatchkeyevent (未知源) )。
at Java.awt.defaultkeyboardfocusmanager.typeaheadassertions (未知源) )。
at Java.awt.defaultkeyboardfocusmanager.dispatch event (unknown source ) )。
at Java.awt.com ponent.dispatcheventimpl (未知源) )。
at Java.awt.container.dispatcheventimpl (未知源) )。
at Java.awt.window.dispatcheventimpl (未知源) )。
at Java.awt.com ponent.dispatch event (unknown source ) )。
at Java.awt.event queue.dispatcheventimpl (未知源) )。
at Java.awt.event queue.access $ 000 (未知源) )。
at Java.awt.event queue $1. run (unknown source ) )。
at Java.awt.event queue $1. run (unknown source ) )。
at Java.security.access controller.do privileged (本机方法) )。
at Java.security.accesscontrolcontext $1. dointersectionprivilege (unknown source ) )。
at Java.security.accesscontrolcontext $1. dointersectionprivilege (unknown source ) )。
at Java.awt.event queue $2. run (未知源) )。
at Java.awt.event queue $2. run (未知源) )。
at Java.security.access controller.do privileged (本机方法) )。
at Java.security.accesscontrolcontext $1. dointersectionprivilege (unknown source ) )。
at Java.awt.event queue.dispatch event (unknown source ) )。
at Java.awt.eventdispatchthread.pumponeeventforfilters (unknown source ) )。
at Java.awt.eventdispatchthread.pumpeventsforfilter (unknown source ) )。
at Java.awt.eventdispatchthread.pumpeventsforhierarchy (unknown source ) )。
at Java.awt.eventdispatchthread.pump events (unknown source ) )。
at Java.awt.eventdispatchthread.pump events (unknown source ) )。
at Java.awt.eventdispatchthread.run (unknown source )。
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