示例

public class ClassA { private PrintWriter writer; public void makeWriter (OutputStream os) { writer = new PrintWriter(os); //do something... } }

解决方案

为了避免资源泄漏，请确保对每个 java.io.PrintWriter 都调用 close()。注意：此规则适用于所有形式的 PrintWriter 构造函数。

public class ClassA { private PrintWriter writer; public void makeWriter (OutputStream os) { writer = new PrintWriter(os); //do something... try { writer.close(); } catch(IOException ioe) { //perform exception handling } } }