Java 如何关闭此文件写入程序?(爪哇,巴基特)
嘿,伙计们,我知道这听起来很无聊,但我如何关闭这个文件编写器呢。代码是用java编写的。我有一个Java 如何关闭此文件写入程序?(爪哇,巴基特),java,plugins,bukkit,Java,Plugins,Bukkit,嘿,伙计们,我知道这听起来很无聊,但我如何关闭这个文件编写器呢。代码是用java编写的。我有一个onDisable()方法,当服务器停止但我放置fw.close()时调用该方法它说,fw无法解析。请帮忙 守则的有关部分如下: try { FileWriter fw = new FileWriter("plugins/TestMessage/messages.txt", true); } catch (IOException e) { e.printStac
onDisable()
方法,当服务器停止但我放置fw.close()时调用该方法代码>它说,fw无法解析
。请帮忙
守则的有关部分如下:
try {
FileWriter fw = new FileWriter("plugins/TestMessage/messages.txt", true);
} catch (IOException e) {
e.printStackTrace();}
}
编辑:已修复:D尝试此
public class MAIN extends JavaPlugin{{
try {
FileWriter fw = new FileWriter("plugins/TestMessage/messages.txt", true);
} catch (IOException e) {
e.printStackTrace();}
}
public void onEnable(){
Logger.getLogger("Minecraft").info("MessageBroadcaster made by cheeseballs500 aka weakwizardsucks2");
}
public void onDisable(){
fw.close();//fw cannot be resolved
}
尝试在任何方法之外创建FileWriter
,然后将其设置为onEnable()
。。。下面是一个例子:
public class MAIN extends JavaPlugin{
public MAIN() {
try {
this.fw = new FileWriter("plugins/TestMessage/messages.txt", true);
} catch (Exception e) {
// TODO: handle exception
}
}
FileWriter fw = null;
public void onEnable(){
Logger.getLogger("Minecraft").info("MessageBroadcaster made by cheeseballs500 aka weakwizardsucks2");
}
public void onDisable(){
try {
fw.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}//fw cannot be resolved
}
}
好的,我试试看。谢谢I get默认构造函数无法处理隐式超级构造函数引发的异常类型IOException。必须在新FileWriter(“plugins/TestMessage/messages.txt”,true)下定义带有红色下划线的显式构造函数代码>第7行实际上应该是:fw=newfilewriter(this.getDataFolder()+“/messages.txt”,true)//将变量赋值,并将文件放入插件文件夹中
public class Main extends JavaPlugin{{
FileWriter fw;//create the variable
@Override
public void onEnable(){
try{
fw = new FileWriter(this.getDataFolder() + "/messages.txt", true); //assign the variable to a value, and put the file in your plugin's folder
}
catch(IOException e){
e.printStackTrace();
}
}
@Override
public void onDisable(){
try{ //try-catch just incase
fw.close();
}
catch(Exception e){
e.printStackTrace();
}
}
}