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https://gitee.com/jzsw-it/yexuejc-base.git
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[update] 1.5.2-jre11
1. 升级相关依赖 2. 依赖工具读取文件FileInput从FileUtil中提取出来
This commit is contained in:
its
254
src/main/java/com/yexuejc/base/file/FileInput.java
Normal file
254
src/main/java/com/yexuejc/base/file/FileInput.java
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@@ -0,0 +1,254 @@
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package com.yexuejc.base.file;
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import java.io.BufferedInputStream;
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import java.io.BufferedReader;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.io.OutputStream;
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import java.io.Reader;
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import java.io.StringWriter;
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import java.lang.reflect.Method;
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import java.nio.charset.Charset;
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import java.util.Scanner;
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import java.util.stream.Collectors;
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import org.apache.commons.io.IOUtils;
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/**
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* 提供读取IO流方法合集
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* <p>读取速度快慢顺序：</p>
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* 1. {@link #read4Buffer(InputStream, Charset)} <br>
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* 2. {@link #read4IOUtilsCopy(InputStream, Charset)} <br>
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* 3. {@link #read4ByteStreams(InputStream, Charset)} <br>
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* 4. {@link #read4Byte(InputStream, Charset)} <br>
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* 5. {@link #read4StringBuilder(InputStream, Charset)} <br>
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* 6. {@link #read4BufferedReaderParallel(InputStream, Charset, String)}<br>
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* 7. {@link #read4BufferedReader(InputStream, Charset, String)}<br>
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* 8. {@link #read4ScannerA(InputStream)}<br>
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* 9. {@link #read4BufferIO(InputStream, Charset)}<br>
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* 10. {@link #read4IOUtils(InputStream, Charset)}<br>
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* 11. {@link #read4ScannerZ(InputStream)}<br>
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* 12. {@link #read4CharStreams(InputStream, Charset)}<br>
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*/
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public class FileInput {
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/**
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* 读取IO流内容：byte方式
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*
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* @param inputStream
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* @param charset 编码：默认 {@link Charset#defaultCharset()}
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* @return
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* @throws IOException
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*/
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public static String read4Byte(InputStream inputStream, Charset charset) throws IOException {
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byte[] bytes = new byte[inputStream.available()];
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inputStream.read(bytes);
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return new String(bytes, charset == null ? Charset.defaultCharset() : charset);
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}
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/**
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* 读取IO流内容：BufferedReader方式
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*
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* @param inputStream
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* @param charset 编码：默认跟随系统 {@link Charset#defaultCharset()}
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* @param lineSeparator 换行方式：默认跟随系统 {@link System#lineSeparator()}
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* @return
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*/
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public static String read4BufferedReader(InputStream inputStream, Charset charset, String lineSeparator) {
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return new BufferedReader(
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new InputStreamReader(inputStream, charset == null ? Charset.defaultCharset() : charset)
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).lines().collect(Collectors.joining(lineSeparator == null ? System.lineSeparator() : lineSeparator));
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}
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/**
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* 读取IO流内容：BufferedReader 并行方式
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*
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* @param inputStream
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* @param charset 编码：默认跟随系统 {@link Charset#defaultCharset()}
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* @param lineSeparator 换行方式：默认跟随系统 {@link System#lineSeparator()}
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* @return
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*/
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public static String read4BufferedReaderParallel(InputStream inputStream, Charset charset, String lineSeparator) {
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return new BufferedReader(
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new InputStreamReader(inputStream, charset == null ? Charset.defaultCharset() : charset)
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).lines().parallel()
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.collect(Collectors.joining(lineSeparator == null ? System.lineSeparator() : lineSeparator));
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}
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/**
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* 读取IO流内容：Scanner A方式
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*
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* @param inputStream
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* @return
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*/
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public static String read4ScannerA(InputStream inputStream) {
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Scanner s = new Scanner(inputStream).useDelimiter("\\A");
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String str = s.hasNext() ? s.next() : "";
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return str;
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}
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/**
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* 读取IO流内容：Scanner Z方式
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*
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* @param inputStream
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* @return
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*/
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public static String read4ScannerZ(InputStream inputStream) {
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return new Scanner(inputStream).useDelimiter("\\Z").next();
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}
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/**
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* 读取IO流内容：StringBuilder方式
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*
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* @param inputStream
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* @param charset 编码：默认跟随系统 {@link Charset#defaultCharset()}
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* @return
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*/
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public static String read4StringBuilder(InputStream inputStream, Charset charset) throws IOException {
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StringBuilder sb = new StringBuilder();
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String line;
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BufferedReader br = new BufferedReader(new InputStreamReader(inputStream, charset == null ? Charset.defaultCharset() : charset));
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while ((line = br.readLine()) != null) {
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sb.append(line);
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}
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return sb.toString();
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}
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/**
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* 读取IO流内容：ByteArrayOutputStream方式
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*
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* @param inputStream
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* @param charset 编码：默认跟随系统 {@link Charset#defaultCharset()}
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* @return
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*/
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public static String read4Buffer(InputStream inputStream, Charset charset) throws IOException {
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ByteArrayOutputStream result = new ByteArrayOutputStream();
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byte[] buffer = new byte[1024];
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int length;
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while ((length = inputStream.read(buffer)) != -1) {
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result.write(buffer, 0, length);
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}
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return result.toString(charset == null ? Charset.defaultCharset().name() : charset.name());
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}
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/**
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* 读取IO流内容：BufferedInputStream+ByteArrayOutputStream方式
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*
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* @param inputStream
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* @param charset 编码：默认跟随系统 {@link Charset#defaultCharset()}
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* @return
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*/
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public static String read4BufferIO(InputStream inputStream, Charset charset) throws IOException {
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BufferedInputStream bis = new BufferedInputStream(inputStream);
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ByteArrayOutputStream buf = new ByteArrayOutputStream();
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int result = bis.read();
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while (result != -1) {
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buf.write((byte) result);
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result = bis.read();
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}
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return buf.toString(charset == null ? Charset.defaultCharset().name() : charset.name());
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}
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/**
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* 读取IO流内容： 依赖于commons-io:commons-io {@link IOUtils#copy(Reader, OutputStream, Charset)}
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*
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* @param inputStream
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* @param charset 编码：默认跟随系统 {@link Charset#defaultCharset()}
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* @return
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* @throws IOException
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*/
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public static String read4IOUtilsCopy(InputStream inputStream, Charset charset) throws IOException {
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StringWriter writer = new StringWriter();
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IOUtils.copy(inputStream, writer, charset == null ? Charset.defaultCharset() : charset);
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return writer.toString();
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}
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/**
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* 读取IO流内容： 依赖于commons-io:commons-io {@link IOUtils#toString(InputStream, Charset)}
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*
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* @param inputStream
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* @param charset 编码：默认跟随系统 {@link Charset#defaultCharset()}
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* @return
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* @throws IOException
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*/
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public static String read4IOUtils(InputStream inputStream, Charset charset) throws IOException {
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return IOUtils.toString(inputStream, charset == null ? Charset.defaultCharset() : charset);
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}
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/**
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* 读取IO流内容： 依赖于com.google.guava:guava {@link com.google.common.io.CharStreams#toString(Readable)}
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*
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* @param inputStream
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* @param charset 编码：默认跟随系统 {@link Charset#defaultCharset()}
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* @return
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* @throws IOException
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*/
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public static String read4CharStreams(InputStream inputStream, Charset charset) throws IOException, ClassNotFoundException {
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try {
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Class<?> charStreamsClass = Class.forName("com.google.common.io.CharStreams");
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Method toStringMethod = charStreamsClass.getMethod("toString", InputStreamReader.class);
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return (String) toStringMethod.invoke(null, new InputStreamReader(inputStream, charset == null ? Charset.defaultCharset() : charset));
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} catch (ClassNotFoundException e) {
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throw new ClassNotFoundException("缺少依赖，请引入Guava");
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} catch (ReflectiveOperationException e) {
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throw new RuntimeException("com.google.common.io.CharStreams.toString调用失败，请检查Guava版本", e);
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}
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// return com.google.common.io.CharStreams.toString(new InputStreamReader(inputStream, charset == null ? Charset.defaultCharset() : charset));
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}
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/**
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* 读取IO流内容： 依赖于com.google.guava:guava {@link com.google.common.io.ByteStreams#toByteArray(InputStream)}
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*
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* @param inputStream
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* @param charset 编码：默认跟随系统 {@link Charset#defaultCharset()}
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* @return
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* @throws IOException
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*/
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public static String read4ByteStreams(InputStream inputStream, Charset charset) throws IOException, ClassNotFoundException {
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try {
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Class<?> charStreamsClass = Class.forName("com.google.common.io.ByteStreams");
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Method toStringMethod = charStreamsClass.getMethod("toByteArray", InputStreamReader.class);
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return (String) toStringMethod.invoke(null, new InputStreamReader(inputStream, charset == null ? Charset.defaultCharset() : charset));
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} catch (ClassNotFoundException e) {
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throw new ClassNotFoundException("缺少依赖，请引入Guava");
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} catch (ReflectiveOperationException e) {
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throw new RuntimeException("com.google.common.io.ByteStreams.toByteArray调用失败，请检查Guava版本", e);
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}
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// return new String(com.google.common.io.ByteStreams.toByteArray(inputStream), charset == null ? Charset.defaultCharset() : charset);
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}
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}
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/*public static void main(String[] args) {
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long size = FileUtil.size(new File("E:\\OS\\deepin-15.6-amd64\\DeepinCloudPrintServerInstaller_1.0.0.1.exe"));
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System.out.println(size);
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System.out.println(1024 * 1024 * 5);
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if (size > 1024 * 1024 * 5) {
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System.out.println("文件最大5M");
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return;
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}
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long s1 = fileSize(new File("E:\\OS\\cn_windows_10_consumer_editions_version_1803_updated_march_2018_x64_dvd_12063766.iso"));
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System.out.println(s1);
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long s2 = fileSize4Stream(new File("E:\\OS\\cn_windows_10_consumer_editions_version_1803_updated_march_2018_x64_dvd_12063766.iso"));
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System.out.println(s2);
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String s1 = base64(new File("C:\\Users\\Administrator\\Desktop\\a.html"));
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System.out.println(s1);
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String s = sha1(new File("C:\\Users\\Administrator\\Desktop\\a.html"));
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String s2 = sha1ByBigFile(new File("C:\\Users\\Administrator\\Desktop\\a.html"));
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System.out.println(s);
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System.out.println(s2);
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String md5 = md5(new File("C:\\Users\\Administrator\\Desktop\\a.html"));
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String md52 = md5ByBigFile(new File("C:\\Users\\Administrator\\Desktop\\a.html"));
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System.out.println(md5);
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System.out.println(md52);
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String crc32 = crc32(new File("C:\\Users\\Administrator\\Desktop\\a.html"));
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System.out.println(crc32);
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}*/
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@@ -1,7 +1,5 @@
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package com.yexuejc.base.pojo;
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import org.checkerframework.checker.units.qual.C;
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import java.nio.charset.Charset;
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import java.nio.charset.StandardCharsets;
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import java.util.List;
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@@ -1,29 +1,11 @@
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package com.yexuejc.base.util;
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import com.fasterxml.jackson.databind.MappingIterator;
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import com.fasterxml.jackson.dataformat.csv.CsvMapper;
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import com.fasterxml.jackson.dataformat.csv.CsvSchema;
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import com.google.common.io.ByteStreams;
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import com.google.common.io.CharStreams;
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import com.yexuejc.base.annotation.CsvToBean;
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import com.yexuejc.base.pojo.ReadFileBean;
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import io.jsonwebtoken.lang.Assert;
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import org.apache.commons.io.IOUtils;
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import java.io.BufferedInputStream;
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import java.io.BufferedReader;
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import java.io.ByteArrayOutputStream;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.io.OutputStream;
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import java.io.RandomAccessFile;
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import java.io.Reader;
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import java.io.StringWriter;
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import java.math.BigInteger;
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import java.nio.MappedByteBuffer;
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import java.nio.channels.FileChannel;
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@@ -35,11 +17,16 @@ import java.security.NoSuchAlgorithmException;
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import java.util.ArrayList;
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import java.util.Base64;
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import java.util.List;
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import java.util.Scanner;
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import java.util.logging.Logger;
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import java.util.stream.Collectors;
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import java.util.zip.CRC32;
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import com.fasterxml.jackson.databind.MappingIterator;
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import com.fasterxml.jackson.dataformat.csv.CsvMapper;
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import com.fasterxml.jackson.dataformat.csv.CsvSchema;
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import com.yexuejc.base.annotation.CsvToBean;
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import com.yexuejc.base.pojo.ReadFileBean;
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import io.jsonwebtoken.lang.Assert;
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/**
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* 文件工具类
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*
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@@ -507,7 +494,8 @@ public class FileUtil {
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while ((line = randomAccessFile.readLine()) != null && row <= readFileBean.getReadRowNum()) {
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row++;
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readFileBean.setPointer(randomAccessFile.getFilePointer());
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datas.add(readFileBean.lineScavenge(charsetDecode(line, readFileBean.getReadCharset()))); }
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datas.add(readFileBean.lineScavenge(charsetDecode(line, readFileBean.getReadCharset())));
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}
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if (StrUtil.isEmpty(datas)) {
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//无数据
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@@ -572,223 +560,4 @@ public class FileUtil {
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}
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return new String(result, charset);
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}
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|
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/**
|
||||
* 提供读取IO流方法合集
|
||||
* <p>读取速度快慢顺序：</p>
|
||||
* 1. {@link #read4Buffer(InputStream, Charset)} <br>
|
||||
* 2. {@link #read4IOUtilsCopy(InputStream, Charset)} <br>
|
||||
* 3. {@link #read4ByteStreams(InputStream, Charset)} <br>
|
||||
* 4. {@link #read4Byte(InputStream, Charset)} <br>
|
||||
* 5. {@link #read4StringBuilder(InputStream, Charset)} <br>
|
||||
* 6. {@link #read4BufferedReaderParallel(InputStream, Charset, String)}<br>
|
||||
* 7. {@link #read4BufferedReader(InputStream, Charset, String)}<br>
|
||||
* 8. {@link #read4ScannerA(InputStream)}<br>
|
||||
* 9. {@link #read4BufferIO(InputStream, Charset)}<br>
|
||||
* 10. {@link #read4IOUtils(InputStream, Charset)}<br>
|
||||
* 11. {@link #read4ScannerZ(InputStream)}<br>
|
||||
* 12. {@link #read4CharStreams(InputStream, Charset)}<br>
|
||||
*/
|
||||
public static class FileInput {
|
||||
/**
|
||||
* 读取IO流内容：byte方式
|
||||
*
|
||||
* @param inputStream
|
||||
* @param charset 编码：默认 {@link Charset#defaultCharset()}
|
||||
* @return
|
||||
* @throws IOException
|
||||
*/
|
||||
public static String read4Byte(InputStream inputStream, Charset charset) throws IOException {
|
||||
byte[] bytes = new byte[inputStream.available()];
|
||||
inputStream.read(bytes);
|
||||
return new String(bytes, charset == null ? Charset.defaultCharset() : charset);
|
||||
}
|
||||
|
||||
/**
|
||||
* 读取IO流内容：BufferedReader方式
|
||||
*
|
||||
* @param inputStream
|
||||
* @param charset 编码：默认跟随系统 {@link Charset#defaultCharset()}
|
||||
* @param lineSeparator 换行方式：默认跟随系统 {@link System#lineSeparator()}
|
||||
* @return
|
||||
*/
|
||||
public static String read4BufferedReader(InputStream inputStream, Charset charset, String lineSeparator) {
|
||||
return new BufferedReader(
|
||||
new InputStreamReader(inputStream, charset == null ? Charset.defaultCharset() : charset)
|
||||
).lines().collect(Collectors.joining(lineSeparator == null ? System.lineSeparator() : lineSeparator));
|
||||
}
|
||||
|
||||
/**
|
||||
* 读取IO流内容：BufferedReader 并行方式
|
||||
*
|
||||
* @param inputStream
|
||||
* @param charset 编码：默认跟随系统 {@link Charset#defaultCharset()}
|
||||
* @param lineSeparator 换行方式：默认跟随系统 {@link System#lineSeparator()}
|
||||
* @return
|
||||
*/
|
||||
public static String read4BufferedReaderParallel(InputStream inputStream, Charset charset, String lineSeparator) {
|
||||
return new BufferedReader(
|
||||
new InputStreamReader(inputStream, charset == null ? Charset.defaultCharset() : charset)
|
||||
).lines().parallel()
|
||||
.collect(Collectors.joining(lineSeparator == null ? System.lineSeparator() : lineSeparator));
|
||||
}
|
||||
|
||||
/**
|
||||
* 读取IO流内容：Scanner A方式
|
||||
*
|
||||
* @param inputStream
|
||||
* @return
|
||||
*/
|
||||
public static String read4ScannerA(InputStream inputStream) {
|
||||
Scanner s = new Scanner(inputStream).useDelimiter("\\A");
|
||||
String str = s.hasNext() ? s.next() : "";
|
||||
return str;
|
||||
}
|
||||
|
||||
/**
|
||||
* 读取IO流内容：Scanner Z方式
|
||||
*
|
||||
* @param inputStream
|
||||
* @return
|
||||
*/
|
||||
public static String read4ScannerZ(InputStream inputStream) {
|
||||
return new Scanner(inputStream).useDelimiter("\\Z").next();
|
||||
}
|
||||
|
||||
/**
|
||||
* 读取IO流内容：StringBuilder方式
|
||||
*
|
||||
* @param inputStream
|
||||
* @param charset 编码：默认跟随系统 {@link Charset#defaultCharset()}
|
||||
* @return
|
||||
*/
|
||||
public static String read4StringBuilder(InputStream inputStream, Charset charset) throws IOException {
|
||||
StringBuilder sb = new StringBuilder();
|
||||
String line;
|
||||
BufferedReader br = new BufferedReader(new InputStreamReader(inputStream, charset == null ? Charset.defaultCharset() : charset));
|
||||
while ((line = br.readLine()) != null) {
|
||||
sb.append(line);
|
||||
}
|
||||
return sb.toString();
|
||||
}
|
||||
|
||||
/**
|
||||
* 读取IO流内容：ByteArrayOutputStream方式
|
||||
*
|
||||
* @param inputStream
|
||||
* @param charset 编码：默认跟随系统 {@link Charset#defaultCharset()}
|
||||
* @return
|
||||
*/
|
||||
public static String read4Buffer(InputStream inputStream, Charset charset) throws IOException {
|
||||
ByteArrayOutputStream result = new ByteArrayOutputStream();
|
||||
byte[] buffer = new byte[1024];
|
||||
int length;
|
||||
while ((length = inputStream.read(buffer)) != -1) {
|
||||
result.write(buffer, 0, length);
|
||||
}
|
||||
return result.toString(charset == null ? Charset.defaultCharset().name() : charset.name());
|
||||
}
|
||||
|
||||
/**
|
||||
* 读取IO流内容：BufferedInputStream+ByteArrayOutputStream方式
|
||||
*
|
||||
* @param inputStream
|
||||
* @param charset 编码：默认跟随系统 {@link Charset#defaultCharset()}
|
||||
* @return
|
||||
*/
|
||||
public static String read4BufferIO(InputStream inputStream, Charset charset) throws IOException {
|
||||
BufferedInputStream bis = new BufferedInputStream(inputStream);
|
||||
ByteArrayOutputStream buf = new ByteArrayOutputStream();
|
||||
int result = bis.read();
|
||||
while (result != -1) {
|
||||
buf.write((byte) result);
|
||||
result = bis.read();
|
||||
}
|
||||
return buf.toString(charset == null ? Charset.defaultCharset().name() : charset.name());
|
||||
}
|
||||
|
||||
/**
|
||||
* 读取IO流内容： 依赖于commons-io:commons-io {@link IOUtils#copy(Reader, OutputStream, Charset)}
|
||||
*
|
||||
* @param inputStream
|
||||
* @param charset 编码：默认跟随系统 {@link Charset#defaultCharset()}
|
||||
* @return
|
||||
* @throws IOException
|
||||
*/
|
||||
public static String read4IOUtilsCopy(InputStream inputStream, Charset charset) throws IOException {
|
||||
StringWriter writer = new StringWriter();
|
||||
IOUtils.copy(inputStream, writer, charset == null ? Charset.defaultCharset() : charset);
|
||||
return writer.toString();
|
||||
}
|
||||
|
||||
/**
|
||||
* 读取IO流内容： 依赖于commons-io:commons-io {@link IOUtils#toString(InputStream, Charset)}
|
||||
*
|
||||
* @param inputStream
|
||||
* @param charset 编码：默认跟随系统 {@link Charset#defaultCharset()}
|
||||
* @return
|
||||
* @throws IOException
|
||||
*/
|
||||
public static String read4IOUtils(InputStream inputStream, Charset charset) throws IOException {
|
||||
return IOUtils.toString(inputStream, charset == null ? Charset.defaultCharset() : charset);
|
||||
}
|
||||
|
||||
/**
|
||||
* 读取IO流内容： 依赖于com.google.guava:guava {@link CharStreams#toString(Readable)}
|
||||
*
|
||||
* @param inputStream
|
||||
* @param charset 编码：默认跟随系统 {@link Charset#defaultCharset()}
|
||||
* @return
|
||||
* @throws IOException
|
||||
*/
|
||||
public static String read4CharStreams(InputStream inputStream, Charset charset) throws IOException {
|
||||
return CharStreams.toString(new InputStreamReader(inputStream, charset == null ? Charset.defaultCharset() : charset));
|
||||
}
|
||||
|
||||
/**
|
||||
* 读取IO流内容： 依赖于com.google.guava:guava {@link ByteStreams#toByteArray(InputStream)}
|
||||
*
|
||||
* @param inputStream
|
||||
* @param charset 编码：默认跟随系统 {@link Charset#defaultCharset()}
|
||||
* @return
|
||||
* @throws IOException
|
||||
*/
|
||||
public static String read4ByteStreams(InputStream inputStream, Charset charset) throws IOException {
|
||||
return new String(ByteStreams.toByteArray(inputStream), charset == null ? Charset.defaultCharset() : charset);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*public static void main(String[] args) {
|
||||
long size = FileUtil.size(new File("E:\\OS\\deepin-15.6-amd64\\DeepinCloudPrintServerInstaller_1.0.0.1.exe"));
|
||||
System.out.println(size);
|
||||
System.out.println(1024 * 1024 * 5);
|
||||
if (size > 1024 * 1024 * 5) {
|
||||
System.out.println("文件最大5M");
|
||||
return;
|
||||
}
|
||||
|
||||
long s1 = fileSize(new File("E:\\OS\\cn_windows_10_consumer_editions_version_1803_updated_march_2018_x64_dvd_12063766.iso"));
|
||||
System.out.println(s1);
|
||||
long s2 = fileSize4Stream(new File("E:\\OS\\cn_windows_10_consumer_editions_version_1803_updated_march_2018_x64_dvd_12063766.iso"));
|
||||
System.out.println(s2);
|
||||
|
||||
String s1 = base64(new File("C:\\Users\\Administrator\\Desktop\\a.html"));
|
||||
System.out.println(s1);
|
||||
|
||||
String s = sha1(new File("C:\\Users\\Administrator\\Desktop\\a.html"));
|
||||
String s2 = sha1ByBigFile(new File("C:\\Users\\Administrator\\Desktop\\a.html"));
|
||||
System.out.println(s);
|
||||
System.out.println(s2);
|
||||
|
||||
|
||||
String md5 = md5(new File("C:\\Users\\Administrator\\Desktop\\a.html"));
|
||||
String md52 = md5ByBigFile(new File("C:\\Users\\Administrator\\Desktop\\a.html"));
|
||||
System.out.println(md5);
|
||||
System.out.println(md52);
|
||||
|
||||
|
||||
String crc32 = crc32(new File("C:\\Users\\Administrator\\Desktop\\a.html"));
|
||||
System.out.println(crc32);
|
||||
}*/
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user