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@ -0,0 +1,201 @@
Apache License
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http://www.apache.org/licenses/
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15
pom.xml
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@ -8,7 +8,7 @@
<artifactId>yexuejc-base</artifactId>
<version>1.5.0-jre8</version>
<name>${project.artifactId}</name>
<name>yexuejc-base</name>
<url>https://github.com/yexuejc/yexuejc-base</url>
<description>Common toolkits based on JDK8 packaging</description>
@ -40,7 +40,7 @@
<properties>
<repos.yexuejc.url>https://nexus.yexuejc.top/repository/</repos.yexuejc.url>
<repos.aliyun.url>http://maven.aliyun.com/nexus/content/groups/public</repos.aliyun.url>
<repos.aliyun.url>https://maven.aliyun.com/repository/public</repos.aliyun.url>
<repos.jitpack.url>https://jitpack.io</repos.jitpack.url>
<jjwt.version>0.11.5</jjwt.version>
<maven.compiler.verbose>true</maven.compiler.verbose>
@ -51,6 +51,7 @@
<bcprov-jdk15on.version>1.70</bcprov-jdk15on.version>
<guava.version>31.1-jre</guava.version>
<apache-poi.version>5.2.2</apache-poi.version>
<jackson.version>2.13.2</jackson.version>
<!-- 文件拷贝时的编码 -->
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
@ -111,6 +112,12 @@
<artifactId>poi-ooxml</artifactId>
<version>${apache-poi.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.dataformat</groupId>
<artifactId>jackson-dataformat-csv</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
@ -196,12 +203,12 @@
</build>
<repositories>
<repository>
<id>yexuejc-nexus-public</id>
<id>yexuejc-maven</id>
<name>yexuejc-nexus-public</name>
<url>${repos.yexuejc.url}maven-public/</url>
</repository>
<repository>
<id>aliyun-nexus-public</id>
<id>aliyun-maven</id>
<name>aliyun-nexus-public</name>
<url>${repos.aliyun.url}</url>
</repository>

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@ -0,0 +1,21 @@
package com.yexuejc.base.annotation;
import java.lang.annotation.*;
/**
* 设置csv header
*
* @author MAXF-MAC
*/
@Target({ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Inherited
public @interface CsvHeader {
/**
* 在类头上设置csv格式的header
* @return
*/
String header();
}

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@ -1,4 +1,6 @@
package com.yexuejc.base.util;
package com.yexuejc.base.annotation;
import com.yexuejc.base.util.ObjUtil;
import java.lang.annotation.*;

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@ -0,0 +1,85 @@
package com.yexuejc.base.pojo;
import java.util.List;
/**
* @author maxf
* @class-name ReadFileBean
* @description 分段读取大文件
* @date 2022/5/16 21:53
*/
public class ReadFileBean<T> {
/**
* 开始行数
*/
private int startRowNum;
/**
* 结束行数
*/
private int endRowNum;
/**
* 每次读取的行数
*/
private int readRowNum;
/**
* 开始行到结束行的数据
*/
private List<T> datas;
/**
* 文件指针位置,默认0开始位置
*/
private long pointer = 0;
/**
* 文件的length
*/
private long fileLength;
public ReadFileBean(int readRow) {
this.readRowNum = readRow;
this.startRowNum = 1;
this.endRowNum = 0;
}
public int getReadRowNum() {
return readRowNum;
}
public int getStartRowNum() {
return startRowNum;
}
public int getEndRowNum() {
return endRowNum;
}
public List<T> getDatas() {
return datas;
}
public ReadFileBean<T> setDatas(List<T> datas) {
this.datas = datas;
this.startRowNum = this.endRowNum + 1;
this.endRowNum += this.readRowNum;
return this;
}
public long getPointer() {
return pointer;
}
public ReadFileBean<T> setPointer(long pointer) {
this.pointer = pointer;
return this;
}
public long getFileLength() {
return fileLength;
}
public ReadFileBean<T> setFileLength(long fileLength) {
this.fileLength = fileLength;
return this;
}
}

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@ -1,13 +1,29 @@
package com.yexuejc.base.util;
import com.fasterxml.jackson.databind.MappingIterator;
import com.fasterxml.jackson.dataformat.csv.CsvMapper;
import com.fasterxml.jackson.dataformat.csv.CsvSchema;
import com.google.common.io.ByteStreams;
import com.google.common.io.CharStreams;
import com.yexuejc.base.annotation.CsvHeader;
import com.yexuejc.base.pojo.ReadFileBean;
import io.jsonwebtoken.lang.Assert;
import org.apache.commons.io.IOUtils;
import java.io.*;
import java.math.BigInteger;
import java.nio.MappedByteBuffer;
import java.nio.channels.FileChannel;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.ArrayList;
import java.util.Base64;
import java.util.List;
import java.util.Scanner;
import java.util.logging.Logger;
import java.util.stream.Collectors;
import java.util.zip.CRC32;
/**
@ -25,6 +41,7 @@ public class FileUtil {
}
private static final String TYPE_TAR_GZ = ".tar.gz";
private static final String TYPE_CSV = ".csv";
private static final String TAR_GZ = "tar.gz";
/**
@ -49,7 +66,7 @@ public class FileUtil {
}
/**
* 判断文件是否存在
* 判断文件是否存在,不存在就创建一个空的
*
* @param file
*/
@ -405,6 +422,325 @@ public class FileUtil {
return 0;
}
/**
* 字符串csv格式 对象
*
* @param data 转换的字符串
* <p> ------------ </p>
* <p> id,name,age </p>
* <p> 1,zhangsan,18 </p>
* <p> 2,lisi,20 </p>
* <p> ------------ </p>
* @param cls 需要转换的对象,含有<b>id,name,age</b>字段
* @param delimiter 分隔符
* @param <I>
* @return
*/
public static <I> List<I> readCsv(String data, Class<I> cls, char delimiter) throws IOException {
CsvMapper csvMapper = new CsvMapper();
CsvSchema csvSchema = CsvSchema.emptySchema().withHeader().withColumnSeparator(delimiter);
MappingIterator<I> orderLines = csvMapper.readerFor(cls).with(csvSchema).readValues(data);
return orderLines.readAll();
}
/**
* 读取csv文件
*
* @param csvFilePath 文件地址
* @param cls 读取转化的对象
* @param hasHeader 是否存在header
* @param delimiter 分隔符.默认,
* @param <I>
* @return
*/
public static <I> List<I> readCsv(final String csvFilePath, Class<I> cls, boolean hasHeader, char delimiter) {
if (!isFileExist(csvFilePath)) {
throw new RuntimeException(String.format("解析用的csv\u0020[%s] 文件不存在。", csvFilePath));
}
if (StrUtil.isEmpty(delimiter)) {
delimiter = ',';
}
try {
File csvFile = new File(csvFilePath);
CsvMapper csvMapper = new CsvMapper();
CsvSchema csvSchema = csvMapper.typedSchemaFor(cls).withStrictHeaders(hasHeader).withColumnSeparator(delimiter).withComments();
MappingIterator<I> recordIterator = csvMapper.readerWithTypedSchemaFor(cls).with(csvSchema).readValues(csvFile);
return recordIterator.readAll();
} catch (IOException e) {
throw new RuntimeException("[" + csvFilePath + "] 文件解析失败。", e);
}
}
/**
* 判断文件是否存在
*
* @param filePath
* @return
*/
public static boolean isFileExist(String filePath) {
if (StrUtil.isEmpty(filePath)) {
return false;
}
File file = new File(filePath);
return file.exists() && !file.isDirectory();
}
/**
* 分段读取大文件
*
* @param path 文件路径
* @param readFileBean 分段每次读取的bean 初始值需要设置每次读取的行数
* @param <T> 读取结果类型bean
* @return
*/
public <T> ReadFileBean<T> readBigFile(String path, ReadFileBean<T> readFileBean, Class<T> readCls) {
File file = new File(path);
judeFileExists(file);
try {
RandomAccessFile randomAccessFile = new RandomAccessFile(file, "r");
randomAccessFile.seek(readFileBean.getPointer());
readFileBean.setFileLength(randomAccessFile.length());
List<String> datas = new ArrayList<>();
for (int i = 0; i < readFileBean.getReadRowNum(); i++) {
String s = randomAccessFile.readLine();
datas.add(charsetDecode(s, StandardCharsets.UTF_8));
readFileBean.setPointer(randomAccessFile.getFilePointer());
}
randomAccessFile.close();
if (path.contains(TYPE_CSV)) {
//csv文件处理
datas.add(0, getCsvHeader(readCls));
List<T> dataList = readCsv(String.join("\n", datas), readCls, ',');
readFileBean.setDatas(dataList);
}
} catch (FileNotFoundException e) {
logger.severe("file exists." + e.getMessage());
} catch (IOException e) {
logger.severe("read file error." + e.getMessage());
}
return readFileBean;
}
/**
* 获取csv的header,使用注解{@link CsvHeader}
*
* @param cls
* @param <T>
* @return
*/
public static <T> String getCsvHeader(Class<T> cls) {
CsvHeader annotation = cls.getAnnotation(CsvHeader.class);
Assert.notNull(annotation, cls.toString() + "类上需要添加注解@CsvHeader并指定header。");
String header = annotation.header();
Assert.notNull(header, cls.toString() + "类上需要添加注解@CsvHeader并指定header。");
return header;
}
/**
* 把字符串data按照指定编码解码
*
* @param data 解码字符串
* @param charset 字符编码
* @return
*/
public static String charsetDecode(String data, Charset charset) {
char[] chars = data.toCharArray();
byte[] result = new byte[chars.length];
for (int i = 0; i < chars.length; i++) {
result[i] = (byte) chars[i];
}
return new String(result, charset);
}
/**
* 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);

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@ -1,5 +1,7 @@
package com.yexuejc.base.util;
import com.yexuejc.base.annotation.ToUeProperty;
import java.io.*;
import java.lang.reflect.Field;
import java.time.LocalDate;

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@ -1,5 +1,7 @@
package com.yexuejc.base.util;
import com.yexuejc.base.annotation.ToUeProperty;
import java.io.Serializable;
import java.math.BigDecimal;
import java.time.LocalDateTime;