HttpServletRequest怎么转string

要将HttpServletRequest转换为String，您可以使用以下代码：

import java.io.IOException;
import java.io.BufferedReader;
import javax.servlet.http.HttpServletRequest;

public String convertToString(HttpServletRequest request) throws IOException {
    StringBuilder stringBuilder = new StringBuilder();
    BufferedReader bufferedReader = null;

    try {
        bufferedReader = request.getReader();        char[] charBuffer = new char[128];
        int bytesRead;
        while ((bytesRead = bufferedReader.read(charBuffer)) != -1) {
            stringBuilder.append(charBuffer, 0, bytesRead);
        }
    } finally {
        if (bufferedReader != null) {
            bufferedReader.close();
        }
    }

    return stringBuilder.toString();
}

这段代码使用了HttpServletRequest的getReader()方法来获取请求的字符流，并使用StringBuilder来读取字符流并构建一个字符串。最后，将StringBuilder转换为String并返回。