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https://gitee.com/dromara/hutool.git
synced 2025-04-24 18:04:54 +08:00
add null check
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6f4a115032
commit
5f88089e4e
@ -90,9 +90,12 @@ public class HexUtil {
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*
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* @param data byte[]
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* @param toLowerCase {@code true} 传换成小写格式 , {@code false} 传换成大写格式
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* @return 十六进制char[]
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* @return 十六进制char[]。如果提供的data为{@code null},返回{@code null}
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*/
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public static char[] encodeHex(final byte[] data, final boolean toLowerCase) {
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if(null == data){
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return null;
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}
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return (toLowerCase ? Base16Codec.CODEC_LOWER : Base16Codec.CODEC_UPPER).encode(data);
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}
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@ -135,7 +138,7 @@ public class HexUtil {
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* @return 十六进制String
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*/
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public static String encodeHexStr(final byte[] data, final boolean toLowerCase) {
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return new String(encodeHex(data, toLowerCase));
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return StrUtil.str(encodeHex(data, toLowerCase), CharsetUtil.UTF_8);
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}
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// ---------------------------------------------------------------------------------------------------- decode
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@ -78,40 +78,45 @@ public class FileTypeUtil {
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/**
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* 根据文件流的头部信息获得文件类型
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*
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* @param in 文件流
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* @param in 文件流
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* @param fileHeadSize 自定义读取文件头部的大小
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* @return 文件类型,未找到为{@code null}
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* @throws IORuntimeException IO异常
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*/
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public static String getType(final InputStream in, final int fileHeadSize) throws IORuntimeException {
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return getType((IoUtil.readHex(in, fileHeadSize,false)));
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public static String getType(final InputStream in, final int fileHeadSize) throws IORuntimeException {
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return getType((IoUtil.readHex(in, fileHeadSize, false)));
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}
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/**
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* 根据文件流的头部信息获得文件类型<br>
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* 注意此方法会读取头部一些bytes,造成此流接下来读取时缺少部分bytes<br>
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* 因此如果想复用此流,流需支持{@link InputStream#reset()}方法。
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* @param in {@link InputStream}
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*
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* @param in {@link InputStream}
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* @param isExact 是否精确匹配,如果为false,使用前64个bytes匹配,如果为true,使用前8192bytes匹配
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* @return 类型,文件的扩展名,未找到为{@code null}
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* @throws IORuntimeException 读取流引起的异常
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* @return 类型,文件的扩展名,in为{@code null}或未找到为{@code null}
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* @throws IORuntimeException 读取流引起的异常
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*/
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public static String getType(final InputStream in, final boolean isExact) throws IORuntimeException {
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public static String getType(final InputStream in, final boolean isExact) throws IORuntimeException {
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if (null == in) {
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return null;
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}
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return isExact
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?getType(readHex8192Upper(in))
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:getType(readHex64Upper(in));
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? getType(readHex8192Upper(in))
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: getType(readHex64Upper(in));
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}
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/**
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* 根据文件流的头部信息获得文件类型<br>
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* 注意此方法会读取头部64个bytes,造成此流接下来读取时缺少部分bytes<br>
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* 因此如果想复用此流,流需支持{@link InputStream#reset()}方法。
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*
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* @param in {@link InputStream}
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* @return 类型,文件的扩展名,未找到为{@code null}
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* @throws IORuntimeException 读取流引起的异常
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* @throws IORuntimeException 读取流引起的异常
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*/
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public static String getType(final InputStream in) throws IORuntimeException {
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return getType(in,false);
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public static String getType(final InputStream in) throws IORuntimeException {
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return getType(in, false);
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}
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/**
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@ -128,10 +133,10 @@ public class FileTypeUtil {
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* @param in {@link InputStream}
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* @param filename 文件名
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* @return 类型,文件的扩展名,未找到为{@code null}
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* @throws IORuntimeException 读取流引起的异常
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* @throws IORuntimeException 读取流引起的异常
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*/
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public static String getType(final InputStream in, final String filename) throws IORuntimeException {
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return getType(in,filename,false);
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public static String getType(final InputStream in, final String filename) throws IORuntimeException {
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return getType(in, filename, false);
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}
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/**
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@ -144,14 +149,15 @@ public class FileTypeUtil {
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* 2、xls、doc、msi头信息无法区分,按照扩展名区分
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* 3、zip可能为docx、xlsx、pptx、jar、war、ofd头信息无法区分,按照扩展名区分
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* </pre>
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*
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* @param in {@link InputStream}
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* @param filename 文件名
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* @param isExact 是否精确匹配,如果为false,使用前64个bytes匹配,如果为true,使用前8192bytes匹配
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* @param isExact 是否精确匹配,如果为false,使用前64个bytes匹配,如果为true,使用前8192bytes匹配
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* @return 类型,文件的扩展名,未找到为{@code null}
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* @throws IORuntimeException 读取流引起的异常
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* @throws IORuntimeException 读取流引起的异常
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*/
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public static String getType(final InputStream in, final String filename, final boolean isExact) throws IORuntimeException {
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String typeName = getType(in,isExact);
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public static String getType(final InputStream in, final String filename, final boolean isExact) throws IORuntimeException {
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String typeName = getType(in, isExact);
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if (null == typeName) {
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// 未成功识别类型,扩展名辅助识别
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typeName = FileNameUtil.extName(filename);
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@ -202,19 +208,19 @@ public class FileTypeUtil {
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* 3、zip可能为jar、war头信息无法区分,按照扩展名区分
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* </pre>
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*
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* @param file 文件 {@link File}
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* @param file 文件 {@link File}
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* @param isExact 是否精确匹配,如果为false,使用前64个bytes匹配,如果为true,使用前8192bytes匹配
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* @return 类型,文件的扩展名,未找到为{@code null}
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* @throws IORuntimeException 读取文件引起的异常
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* @throws IORuntimeException 读取文件引起的异常
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*/
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public static String getType(final File file, final boolean isExact) throws IORuntimeException {
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if(false == FileUtil.isFile(file)){
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public static String getType(final File file, final boolean isExact) throws IORuntimeException {
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if (false == FileUtil.isFile(file)) {
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throw new IllegalArgumentException("Not a regular file!");
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}
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InputStream in = null;
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try {
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in = IoUtil.toStream(file);
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return getType(in, file.getName(),isExact);
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return getType(in, file.getName(), isExact);
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} finally {
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IoUtil.closeQuietly(in);
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}
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@ -231,22 +237,22 @@ public class FileTypeUtil {
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*
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* @param file 文件 {@link File}
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* @return 类型,文件的扩展名,未找到为{@code null}
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* @throws IORuntimeException 读取文件引起的异常
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* @throws IORuntimeException 读取文件引起的异常
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*/
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public static String getType(final File file) throws IORuntimeException {
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return getType(file,false);
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public static String getType(final File file) throws IORuntimeException {
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return getType(file, false);
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}
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/**
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* 通过路径获得文件类型
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*
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* @param path 路径,绝对路径或相对ClassPath的路径
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* @param path 路径,绝对路径或相对ClassPath的路径
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* @param isExact 是否精确匹配,如果为false,使用前64个bytes匹配,如果为true,使用前8192bytes匹配
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* @return 类型
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* @throws IORuntimeException 读取文件引起的异常
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* @throws IORuntimeException 读取文件引起的异常
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*/
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public static String getTypeByPath(final String path, final boolean isExact) throws IORuntimeException {
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return getType(FileUtil.file(path),isExact);
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public static String getTypeByPath(final String path, final boolean isExact) throws IORuntimeException {
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return getType(FileUtil.file(path), isExact);
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}
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/**
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@ -254,10 +260,10 @@ public class FileTypeUtil {
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*
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* @param path 路径,绝对路径或相对ClassPath的路径
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* @return 类型
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* @throws IORuntimeException 读取文件引起的异常
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* @throws IORuntimeException 读取文件引起的异常
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*/
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public static String getTypeByPath(final String path) throws IORuntimeException {
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return getTypeByPath(path,false);
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public static String getTypeByPath(final String path) throws IORuntimeException {
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return getTypeByPath(path, false);
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}
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/**
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