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Java反编译中文乱码？这锅到底谁来背？我忍你很久了

news 2026/6/15 0:53:28

近些日子碰到了一个状况, Java去读取文本文件, 像是csv文件、txt文件一类的, 一旦碰到中文就会变为乱码。（推荐: java视频教程）

读取代码如下：

List lines=new ArrayList(); BufferedReader br = new BufferedReader(new FileReader(fileName)); String line = null; while ((line = br.readLine()) != null) { lines.add(line); } br.close();lines=new ArrayList(); BufferedReader br = new BufferedReader(new FileReader(fileName)); String line = null; while ((line = br.readLine()) != null) { lines.add(line); } br.close();

原理

Java的I/O类处理如图：

和类是Java的I/O里读字符的父类, 接着类是读字节的父类, 随后类是关联字节到字符的桥梁, 它承担在I/O进程里处理读取字节到字符的转换, 然而具体字节到字符的解码实现它是由去实现。

进行解码时, 编码格式必须由用户予以指定。此外, 需要留意的是, 如果未曾指定, 那么将会采用本地环境里的默认字符集, 比如说, 在中文环境中会采用GBK编码。

导入或其他的JAVA项目的正确方法 WORD版

这份文档着重讲的是, 把其他的JAVA项目导入的正确方式, 期望这份文档, 能给有需求的友人送去帮助, 有兴趣的朋友能够过来瞧瞧。

下载

归纳, 在Java读取数据流之际, 务必要明确指定数据流的编码方式，不然的话就会运用本地环境裹的默认字符集。

经过上述分析，修改之后的代码如下：

List lines=new ArrayList(); BufferedReader br=new BufferedReader(new InputStreamReader(new FileInputStream(fileName),"UTF-8")); String line = null; while ((line = br.readLine()) != null) { lines.add(line); } br.close();lines=new ArrayList(); BufferedReader br=new BufferedReader(new InputStreamReader(new FileInputStream(fileName),"UTF-8")); String line = null; while ((line = br.readLine()) != null) { lines.add(line); } br.close();

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