java - BufferedReader 不读取整个文本文件

Question

                String str = "";
            try {

                BufferedReader br = new BufferedReader(new FileReader(file.getAbsolutePath()));
                while (br.readLine() != null) {
                    str += br.readLine();
                }
            } catch (Exception e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

            String replace = str.replace("HTTP Request: ", "")
                    .replace("Resource URL: ","")
                    .replace("Attribute\t\tDescription", "| Attribute | Type | Description |<P>|----|----|<P>")
                    .replace("Data Type | Max Length | Requirement |", "")
                    .replace("N/A", "Object")
                    .replace("String", "| String")
                    .replace("255 |", "")
                    .replace("Required", "**Required**")
                    .replace("Optional", "**Optional**")
                    .replace("Request Example <P>", "")
                    .replace("Response Example <P>", "Nothing");

            PrintWriter pw = null;

BufferedReader 忽略前 3 行并读取/转换其余行。不确定是什么问题。我尝试过其他 StackOverflow 解决方案，但它们似乎都不起作用!

Answer 1

问题在这里:

while (br.readLine() != null)

您检查 br.readLine() 是否不为空的时间您已经阅读了该行。要解决此问题，您可以尝试以下操作:

String line = br.readLine();
while (line != null){
    str +=line;
    line = br.readLine();
}