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add methods

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Looly 2021-03-26 21:50:21 +08:00
parent 6a8e5d8b6c
commit 2484c82584
8 changed files with 163 additions and 172 deletions
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100
hutool-core/src/main/java/cn/hutool/core/text/SpecialSymbolUtil.java
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@ -1,100 +0,0 @@
package cn.hutool.core.text;
import java.math.BigInteger;
/**
* 符号工具类
* @author dazer & neusoft
* @date 2021/3/26 12:21
* 别名：Symbol or special signal or Special symbols
* 说明：获取常见的特殊符号，如：带圈数字、
*
* {@link UnicodeUtil}
* @link 百度百科 https://baike.baidu.com/item/%E7%89%B9%E6%AE%8A%E5%AD%97%E7%AC%A6/112715?fr=aladdin
* @link 360百科 https://baike.so.com/doc/5408938-5646935.html
* @link 百科 https://www.baike.com/wikiid/3469869303298461399?prd=home_search&search_id=5bm572esa2k000&view_id=1takcxx7kjc000
* @link coolsymbol https://coolsymbol.com/
* @link 维基百科wikipedia https://en.wikipedia.org/wiki/List_of_Unicode_characters#Unicode_symbols
*
* @since 5.6.2
*/
public class SpecialSymbolUtil {
public static final String UNICODE_START_CHAR = "\\u";
private SpecialSymbolUtil(){}
/**
* 获取带圈数字 /封闭式字母数字 ，从1-20,超过1-20报错
*
* 0 1 2 3 4 5 6 7 8 9 A B C D E F
* U+246x ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩ ⑪ ⑫ ⑬ ⑭ ⑮ ⑯
* U+247x ⑰ ⑱ ⑲ ⑳ ⑴ ⑵ ⑶ ⑷ ⑸ ⑹ ⑺ ⑻ ⑼ ⑽ ⑾ ⑿
* U+248x ⒀ ⒁ ⒂ ⒃ ⒄ ⒅ ⒆ ⒇ ⒈ ⒉ ⒊ ⒋ ⒌ ⒍ ⒎ ⒏
* U+249x ⒐ ⒑ ⒒ ⒓ ⒔ ⒕ ⒖ ⒗ ⒘ ⒙ ⒚ ⒛ ⒜ ⒝ ⒞ ⒟
* U+24Ax ⒠ ⒡ ⒢ ⒣ ⒤ ⒥ ⒦ ⒧ ⒨ ⒩ ⒪ ⒫ ⒬ ⒭ ⒮ ⒯
* U+24Bx ⒰ ⒱ ⒲ ⒳ ⒴ ⒵ Ⓐ Ⓑ Ⓒ Ⓓ Ⓔ Ⓕ Ⓖ Ⓗ Ⓘ Ⓙ
* U+24Cx Ⓚ Ⓛ Ⓜ Ⓝ Ⓞ Ⓟ Ⓠ Ⓡ Ⓢ Ⓣ Ⓤ Ⓥ Ⓦ Ⓧ Ⓨ Ⓩ
* U+24Dx ⓐ ⓑ ⓒ ⓓ ⓔ ⓕ ⓖ ⓗ ⓘ ⓙ ⓚ ⓛ ⓜ ⓝ ⓞ ⓟ
* U+24Ex ⓠ ⓡ ⓢ ⓣ ⓤ ⓥ ⓦ ⓧ ⓨ ⓩ ⓪ ⓫ ⓬ ⓭ ⓮ ⓯
* U+24Fx ⓰ ⓱ ⓲ ⓳ ⓴ ⓵ ⓶ ⓷ ⓸ ⓹ ⓺ ⓻ ⓼ ⓽ ⓾ ⓿
* @link Unicode_symbols https://en.wikipedia.org/wiki/List_of_Unicode_characters#Unicode_symbols
* @link Enclosed Alphanumerics https://en.wikipedia.org/wiki/Enclosed_Alphanumerics
*
* <code>
* System.out.println(enclosedAlphanumericsStyle1ByInt(1));
* System.out.println(enclosedAlphanumericsStyle1ByInt(2));
* System.out.println(enclosedAlphanumericsStyle1ByInt(3));
* System.out.println(enclosedAlphanumericsStyle1ByInt(4));
* System.out.println(enclosedAlphanumericsStyle1ByInt(14));
* System.out.println(enclosedAlphanumericsStyle1ByInt(18));
* System.out.println(enclosedAlphanumericsStyle1ByInt(19));
* System.out.println(enclosedAlphanumericsStyle1ByInt(20));
* </code>
*
* @param number 十进制数字，从1、-->10、11--->20
* @return ①②③④⑤⑥⑦⑧⑩⑪⑫⑬⑭⑮⑯⑰⑱⑲⑳
*/
public static String enclosedNumericsByInt(int number) {
if (number <= 0 || number > 20) {
throw new IllegalArgumentException("number取值范围是[1-20]的正整数,包含1和20");
}
String start = "①";
String unicodeStart = UnicodeUtil.toUnicode(start).substring(UNICODE_START_CHAR.length(),
UnicodeUtil.toUnicode(start).length() - 1);
// begin: U+246x的24
String beginHex = unicodeStart.substring(0, 2);
// U+246x的6
String middleHex = number >= 17 ? "7" : "6";
// A
String endHex = Integer.toHexString(number >= 17 ? number - 17 : number - 1);
// U + 24 + 60
String unicodeStr = UNICODE_START_CHAR + beginHex + middleHex + endHex;
return UnicodeUtil.toString(unicodeStr);
}
/**
* 获取带圈字母 /封闭式字母 ，从a-z or A-Z
* 根据字符 获取 Ⓐ Ⓑ Ⓒ Ⓓ Ⓔ Ⓕ Ⓖ Ⓗ Ⓘ Ⓙ Ⓚ Ⓛ Ⓜ Ⓝ Ⓞ Ⓟ Ⓠ Ⓡ Ⓢ Ⓣ Ⓤ Ⓥ Ⓦ Ⓧ Ⓨ Ⓩ ⓐ ⓑ ⓒ ⓓ ⓔ ⓕ ⓖ ⓗ ⓘ ⓙ ⓚ ⓛ ⓜ ⓝ ⓞ ⓟ ⓠ ⓡ ⓢ ⓣ ⓤ ⓥ ⓦ ⓧ ⓨ ⓩ
* <code>
* System.out.println(encloseAlphabetByChar( 'A'));
* System.out.println(encloseAlphabetByChar( 'a'));
* System.out.println(encloseAlphabetByChar( 'z'));
* System.out.println(encloseAlphabetByChar( 'Z'))
* </code>
* @author dazer
* @param letter 字母，不区分大小写，'a'、'b'、'c'、'd'...'x'、'y'、'z'; 'A'、'B'...'Z'
* @date 2021/3/26 18:10
*/
public static String encloseAlphabetByChar(char letter) {
if (!(letter >= 'a' && letter <= 'z' || letter >= 'A' && letter <= 'Z')) {
throw new IllegalArgumentException("number取值范围是[a-z]、[A-Z]的字符");
}
// \u24b6
String start = "Ⓐ";
String hexStr = UnicodeUtil.toUnicode(start).substring(UNICODE_START_CHAR.length());
int difference = letter >= 'a' && letter <= 'z' ? (letter - (int)'a') : (letter - (int)'A');
String hex = new BigInteger(hexStr, 16).add(new BigInteger(String.valueOf(difference), 10)).toString(16);
//
String unicodeStr = UNICODE_START_CHAR + hex;
return UnicodeUtil.toString(unicodeStr);
}
}

24
hutool-core/src/main/java/cn/hutool/core/text/UnicodeUtil.java
View File

@ -54,6 +54,30 @@ public class UnicodeUtil {
return sb.toString();
}
/**
* 字符编码为Unicode形式
*
* @param c 被编码的字符
* @return Unicode字符串
* @since 5.6.2
* @see HexUtil#toUnicodeHex(char)
*/
public static String toUnicode(char c) {
return HexUtil.toUnicodeHex(c);
}
/**
* 字符编码为Unicode形式
*
* @param c 被编码的字符
* @return Unicode字符串
* @since 5.6.2
* @see HexUtil#toUnicodeHex(int)
*/
public static String toUnicode(int c) {
return HexUtil.toUnicodeHex(c);
}
/**
* 字符串编码为Unicode形式
*

43
hutool-core/src/main/java/cn/hutool/core/util/CharUtil.java
View File

@ -366,4 +366,47 @@ public class CharUtil {
public static int digit16(int b) {
return Character.digit(b, 16);
}
/**
* 将字母、数字转换为带圈的字符：
* <pre>
* '1' -》 '①'
* 'A' -》 'Ⓐ'
* 'a' -》 'ⓐ'
* </pre>
*
* @param c 被转换的字符，如果字符不支持转换，返回原字符
* @return 转换后的字符
* @since 5.6.2
*/
public static char toCloseChar(char c){
int result = c;
if(c >='1' && c <= '9'){
result = '①' + c - '1';
} else if(c >='A' && c <= 'Z'){
result = 'Ⓐ' + c - 'A';
} else if(c >='a' && c <= 'z'){
result = 'ⓐ' + c - 'a';
}
return (char) result;
}
/**
* 将[1-20]数字转换为带圈的字符：
* <pre>
* 1 -》 '①'
* 12 -》 '⑫'
* 20 -》 '⑳'
* </pre>
*
* @param number 被转换的数字
* @return 转换后的字符
* @since 5.6.2
*/
public static char toCloseByNumber(int number){
if(number > 20){
throw new IllegalArgumentException("Number must be [1-20]");
}
return (char) ('①' + number - 1);
}
}

4
hutool-core/src/main/java/cn/hutool/core/util/HexUtil.java
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@ -262,7 +262,7 @@ public class HexUtil {
* 转换的字符串如果u后不足4位，则前面用0填充，例如：
*
* <pre>
* '我' =》\u4f60
* '你' =》\u4f60
* </pre>
*
* @param value int值，也可以是char
@ -287,7 +287,7 @@ public class HexUtil {
* 转换的字符串如果u后不足4位，则前面用0填充，例如：
*
* <pre>
* '我' =》\u4f60
* '你' =》'\u4f60'
* </pre>
*
* @param ch char值

20
hutool-core/src/test/java/cn/hutool/core/util/CharUtilTest.java
View File

@ -4,7 +4,7 @@ import org.junit.Assert;
import org.junit.Test;
public class CharUtilTest {
@Test
public void trimTest() {
//此字符串中的第一个字符为不可见字符: '\u202a'
@ -12,13 +12,13 @@ public class CharUtilTest {
Assert.assertEquals('\u202a', str.charAt(0));
Assert.assertTrue(CharUtil.isBlankChar(str.charAt(0)));
}
@Test
public void isEmojiTest() {
String a = "莉🌹";
Assert.assertFalse(CharUtil.isEmoji(a.charAt(0)));
Assert.assertTrue(CharUtil.isEmoji(a.charAt(1)));
}
@Test
@ -38,4 +38,18 @@ public class CharUtilTest {
char a3 = '\u3000';
Assert.assertTrue(CharUtil.isBlankChar(a3));
}
@Test
public void toCloseCharTest(){
Assert.assertEquals('②', CharUtil.toCloseChar('2'));
Assert.assertEquals('Ⓜ', CharUtil.toCloseChar('M'));
Assert.assertEquals('ⓡ', CharUtil.toCloseChar('r'));
}
@Test
public void toCloseByNumberTest(){
Assert.assertEquals('②', CharUtil.toCloseByNumber(2));
Assert.assertEquals('⑫', CharUtil.toCloseByNumber(12));
Assert.assertEquals('⑳', CharUtil.toCloseByNumber(20));
}
}

12
hutool-core/src/test/java/cn/hutool/core/util/HexUtilTest.java
View File

@ -9,26 +9,26 @@ import org.junit.Test;
*
*/
public class HexUtilTest {
@Test
public void hexStrTest(){
String str = "我是一个字符串";
String hex = HexUtil.encodeHexStr(str, CharsetUtil.CHARSET_UTF_8);
String decodedStr = HexUtil.decodeHexStr(hex);
Assert.assertEquals(str, decodedStr);
}
@Test
public void toUnicodeHexTest() {
String unicodeHex = HexUtil.toUnicodeHex('\u2001');
Assert.assertEquals("\\u2001", unicodeHex);
unicodeHex = HexUtil.toUnicodeHex('你');
Assert.assertEquals("\\u4f60", unicodeHex);
}
@Test
public void isHexNumberTest() {
String a = "0x3544534F444";

125
hutool-extra/src/main/java/cn/hutool/extra/servlet/ServletUtil.java
View File

@ -58,6 +58,7 @@ public class ServletUtil {
public static final String METHOD_TRACE = "TRACE";
// --------------------------------------------------------- getParam start
/**
* 获得所有请求参数
*
@ -92,7 +93,7 @@ public class ServletUtil {
* @since 4.0.2
*/
public static String getBody(ServletRequest request) {
try(final BufferedReader reader = request.getReader()) {
try (final BufferedReader reader = request.getReader()) {
return IoUtil.read(reader);
} catch (IOException e) {
throw new IORuntimeException(e);
@ -117,12 +118,13 @@ public class ServletUtil {
// --------------------------------------------------------- getParam end
// --------------------------------------------------------- fillBean start
/**
* ServletRequest 参数转Bean
*
* @param <T> Bean类型
* @param request ServletRequest
* @param bean Bean
* @param <T> Bean类型
* @param request ServletRequest
* @param bean Bean
* @param copyOptions 注入时的设置
* @return Bean
* @since 3.0.4
@ -133,17 +135,17 @@ public class ServletUtil {
@Override
public Object value(String key, Type valueType) {
String[] values = request.getParameterValues(key);
if(ArrayUtil.isEmpty(values)){
if (ArrayUtil.isEmpty(values)) {
values = request.getParameterValues(beanName + StrUtil.DOT + key);
if(ArrayUtil.isEmpty(values)){
if (ArrayUtil.isEmpty(values)) {
return null;
}
}
if(1 == values.length){
if (1 == values.length) {
// 单值表单直接返回这个值
return values[0];
}else{
} else {
// 多值表单返回数组
return values;
}
@ -160,9 +162,9 @@ public class ServletUtil {
/**
* ServletRequest 参数转Bean
*
* @param <T> Bean类型
* @param request {@link ServletRequest}
* @param bean Bean
* @param <T> Bean类型
* @param request {@link ServletRequest}
* @param bean Bean
* @param isIgnoreError 是否忽略注入错误
* @return Bean
*/
@ -173,9 +175,9 @@ public class ServletUtil {
/**
* ServletRequest 参数转Bean
*
* @param <T> Bean类型
* @param request ServletRequest
* @param beanClass Bean Class
* @param <T> Bean类型
* @param request ServletRequest
* @param beanClass Bean Class
* @param isIgnoreError 是否忽略注入错误
* @return Bean
*/
@ -202,12 +204,12 @@ public class ServletUtil {
* 需要注意的是，使用此方法获取的客户IP地址必须在Http服务器（例如Nginx）中配置头信息，否则容易造成IP伪造。
* </p>
*
* @param request 请求对象{@link HttpServletRequest}
* @param request 请求对象{@link HttpServletRequest}
* @param otherHeaderNames 其他自定义头文件，通常在Http服务器（例如Nginx）中配置
* @return IP地址
*/
public static String getClientIP(HttpServletRequest request, String... otherHeaderNames) {
String[] headers = { "X-Forwarded-For", "X-Real-IP", "Proxy-Client-IP", "WL-Proxy-Client-IP", "HTTP_CLIENT_IP", "HTTP_X_FORWARDED_FOR" };
String[] headers = {"X-Forwarded-For", "X-Real-IP", "Proxy-Client-IP", "WL-Proxy-Client-IP", "HTTP_CLIENT_IP", "HTTP_X_FORWARDED_FOR"};
if (ArrayUtil.isNotEmpty(otherHeaderNames)) {
headers = ArrayUtil.addAll(headers, otherHeaderNames);
}
@ -223,7 +225,7 @@ public class ServletUtil {
* 需要注意的是，使用此方法获取的客户IP地址必须在Http服务器（例如Nginx）中配置头信息，否则容易造成IP伪造。
* </p>
*
* @param request 请求对象{@link HttpServletRequest}
* @param request 请求对象{@link HttpServletRequest}
* @param headerNames 自定义头，通常在Http服务器（例如Nginx）中配置
* @return IP地址
* @since 4.4.1
@ -258,7 +260,7 @@ public class ServletUtil {
* 包括文件和普通表单数据<br>
* 在同一次请求中，此方法只能被执行一次！
*
* @param request {@link ServletRequest}
* @param request {@link ServletRequest}
* @param uploadSetting 上传文件的设定，包括最大文件大小、保存在内存的边界大小、临时目录、扩展名限定等
* @return MultiPart表单
* @throws IORuntimeException IO异常
@ -276,6 +278,7 @@ public class ServletUtil {
}
// --------------------------------------------------------- Header start
/**
* 获取请求所有的头（header）信息
*
@ -300,7 +303,7 @@ public class ServletUtil {
/**
* 忽略大小写获得请求header中的信息
*
* @param request 请求对象{@link HttpServletRequest}
* @param request 请求对象{@link HttpServletRequest}
* @param nameIgnoreCase 忽略大小写头信息的KEY
* @return header值
*/
@ -320,8 +323,8 @@ public class ServletUtil {
/**
* 获得请求header中的信息
*
* @param request 请求对象{@link HttpServletRequest}
* @param name 头信息的KEY
* @param request 请求对象{@link HttpServletRequest}
* @param name 头信息的KEY
* @param charsetName 字符集
* @return header值
*/
@ -333,7 +336,7 @@ public class ServletUtil {
* 获得请求header中的信息
*
* @param request 请求对象{@link HttpServletRequest}
* @param name 头信息的KEY
* @param name 头信息的KEY
* @param charset 字符集
* @return header值
* @since 4.6.2
@ -402,11 +405,12 @@ public class ServletUtil {
// --------------------------------------------------------- Header end
// --------------------------------------------------------- Cookie start
/**
* 获得指定的Cookie
*
* @param httpServletRequest {@link HttpServletRequest}
* @param name cookie名
* @param name cookie名
* @return Cookie对象
*/
public static Cookie getCookie(HttpServletRequest httpServletRequest, String name) {
@ -421,7 +425,7 @@ public class ServletUtil {
*/
public static Map<String, Cookie> readCookieMap(HttpServletRequest httpServletRequest) {
final Cookie[] cookies = httpServletRequest.getCookies();
if(ArrayUtil.isEmpty(cookies)){
if (ArrayUtil.isEmpty(cookies)) {
return MapUtil.empty();
}
@ -435,7 +439,7 @@ public class ServletUtil {
* 设定返回给客户端的Cookie
*
* @param response 响应对象{@link HttpServletResponse}
* @param cookie Servlet Cookie对象
* @param cookie Servlet Cookie对象
*/
public static void addCookie(HttpServletResponse response, Cookie cookie) {
response.addCookie(cookie);
@ -445,8 +449,8 @@ public class ServletUtil {
* 设定返回给客户端的Cookie
*
* @param response 响应对象{@link HttpServletResponse}
* @param name Cookie名
* @param value Cookie值
* @param name Cookie名
* @param value Cookie值
*/
public static void addCookie(HttpServletResponse response, String name, String value) {
response.addCookie(new Cookie(name, value));
@ -455,12 +459,12 @@ public class ServletUtil {
/**
* 设定返回给客户端的Cookie
*
* @param response 响应对象{@link HttpServletResponse}
* @param name cookie名
* @param value cookie值
* @param response 响应对象{@link HttpServletResponse}
* @param name cookie名
* @param value cookie值
* @param maxAgeInSeconds -1: 关闭浏览器清除Cookie. 0: 立即清除Cookie. &gt;0 : Cookie存在的秒数.
* @param path Cookie的有效路径
* @param domain the domain name within which this cookie is visible; form is according to RFC 2109
* @param path Cookie的有效路径
* @param domain the domain name within which this cookie is visible; form is according to RFC 2109
*/
public static void addCookie(HttpServletResponse response, String name, String value, int maxAgeInSeconds, String path, String domain) {
Cookie cookie = new Cookie(name, value);
@ -477,9 +481,9 @@ public class ServletUtil {
* Path: "/"<br>
* No Domain
*
* @param response 响应对象{@link HttpServletResponse}
* @param name cookie名
* @param value cookie值
* @param response 响应对象{@link HttpServletResponse}
* @param name cookie名
* @param value cookie值
* @param maxAgeInSeconds -1: 关闭浏览器清除Cookie. 0: 立即清除Cookie. &gt;0 : Cookie存在的秒数.
*/
public static void addCookie(HttpServletResponse response, String name, String value, int maxAgeInSeconds) {
@ -488,6 +492,7 @@ public class ServletUtil {
// --------------------------------------------------------- Cookie end
// --------------------------------------------------------- Response start
/**
* 获得PrintWriter
*
@ -506,8 +511,8 @@ public class ServletUtil {
/**
* 返回数据给客户端
*
* @param response 响应对象{@link HttpServletResponse}
* @param text 返回的内容
* @param response 响应对象{@link HttpServletResponse}
* @param text 返回的内容
* @param contentType 返回的类型
*/
public static void write(HttpServletResponse response, String text, String contentType) {
@ -528,7 +533,7 @@ public class ServletUtil {
* 返回文件给客户端
*
* @param response 响应对象{@link HttpServletResponse}
* @param file 写出的文件对象
* @param file 写出的文件对象
* @since 4.1.15
*/
public static void write(HttpServletResponse response, File file) {
@ -546,21 +551,21 @@ public class ServletUtil {
/**
* 返回数据给客户端
*
* @param response 响应对象{@link HttpServletResponse}
* @param in 需要返回客户端的内容
* @param response 响应对象{@link HttpServletResponse}
* @param in 需要返回客户端的内容
* @param contentType 返回的类型
* 如：
* 1、application/pdf、
* 2、application/vnd.ms-excel、
* 3、application/msword、
* 4、application/vnd.ms-powerpoint
* docx、xlsx 这种 office 2007 格式 设置 MIME;网页里面docx 文件是没问题，但是下载下来了之后就变成doc格式了
* https://blog.csdn.net/cyh2260629/article/details/73824760
* 5、MIME_EXCELX_TYPE = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
* 6、MIME_PPTX_TYPE = "application/vnd.openxmlformats-officedocument.presentationml.presentation";
* 7、MIME_WORDX_TYPE = "application/vnd.openxmlformats-officedocument.wordprocessingml.document";
* 8、MIME_STREAM_TYPE = "application/octet-stream;charset=utf-8"; #原始字节流
* @param fileName 文件名
* 如：
* 1、application/pdf、
* 2、application/vnd.ms-excel、
* 3、application/msword、
* 4、application/vnd.ms-powerpoint
* docx、xlsx 这种 office 2007 格式 设置 MIME;网页里面docx 文件是没问题，但是下载下来了之后就变成doc格式了
* https://blog.csdn.net/cyh2260629/article/details/73824760
* 5、MIME_EXCELX_TYPE = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
* 6、MIME_PPTX_TYPE = "application/vnd.openxmlformats-officedocument.presentationml.presentation";
* 7、MIME_WORDX_TYPE = "application/vnd.openxmlformats-officedocument.wordprocessingml.document";
* 8、MIME_STREAM_TYPE = "application/octet-stream;charset=utf-8"; #原始字节流
* @param fileName 文件名
* @since 4.1.15
*/
public static void write(HttpServletResponse response, InputStream in, String contentType, String fileName) {
@ -573,8 +578,8 @@ public class ServletUtil {
/**
* 返回数据给客户端
*
* @param response 响应对象{@link HttpServletResponse}
* @param in 需要返回客户端的内容
* @param response 响应对象{@link HttpServletResponse}
* @param in 需要返回客户端的内容
* @param contentType 返回的类型
*/
public static void write(HttpServletResponse response, InputStream in, String contentType) {
@ -586,7 +591,7 @@ public class ServletUtil {
* 返回数据给客户端
*
* @param response 响应对象{@link HttpServletResponse}
* @param in 需要返回客户端的内容
* @param in 需要返回客户端的内容
*/
public static void write(HttpServletResponse response, InputStream in) {
write(response, in, IoUtil.DEFAULT_BUFFER_SIZE);
@ -595,8 +600,8 @@ public class ServletUtil {
/**
* 返回数据给客户端
*
* @param response 响应对象{@link HttpServletResponse}
* @param in 需要返回客户端的内容
* @param response 响应对象{@link HttpServletResponse}
* @param in 需要返回客户端的内容
* @param bufferSize 缓存大小
*/
public static void write(HttpServletResponse response, InputStream in, int bufferSize) {
@ -616,15 +621,15 @@ public class ServletUtil {
* 设置响应的Header
*
* @param response 响应对象{@link HttpServletResponse}
* @param name 名
* @param value 值，可以是String，Date， int
* @param name 名
* @param value 值，可以是String，Date， int
*/
public static void setHeader(HttpServletResponse response, String name, Object value) {
if (value instanceof String) {
response.setHeader(name, (String) value);
} else if (Date.class.isAssignableFrom(value.getClass())) {
response.setDateHeader(name, ((Date) value).getTime());
} else if (value instanceof Integer || "int".equals(value.getClass().getSimpleName().toLowerCase())) {
} else if (value instanceof Integer || "int".equalsIgnoreCase(value.getClass().getSimpleName())) {
response.setIntHeader(name, (int) value);
} else {
response.setHeader(name, value.toString());

7
hutool-extra/src/test/java/cn/hutool/extra/servlet/ServletUtilTest.java
View File

@ -1,5 +1,6 @@
package cn.hutool.extra.servlet;
import org.junit.Ignore;
import org.junit.Test;
import javax.servlet.http.HttpServletResponse;
@ -8,18 +9,22 @@ import java.nio.charset.StandardCharsets;
/**
* ServletUtil工具类测试
*
* @author dazer
* @date 2021/3/24 15:02
* @see ServletUtil
*/
public class ServletUtilTest {
@Test
@Ignore
public void writeTest() {
HttpServletResponse response = null;
byte[] bytes = new String("地球是我们共同的家园，需要大家珍惜.").getBytes(StandardCharsets.UTF_8);
byte[] bytes = "地球是我们共同的家园，需要大家珍惜.".getBytes(StandardCharsets.UTF_8);
//下载文件
// 这里没法直接测试，直接写到这里，方便调用；
//noinspection ConstantConditions
if (response != null) {
String fileName = "签名文件.pdf";
String contentType = "application/pdf";// application/octet-stream、image/jpeg、image/gif