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yangzhao
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新增图片工具类 将图片内容转换为base64
静态方法
1 parent 1e4293a commit a9cd505

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4 files changed

+292
-203
lines changed

4 files changed

+292
-203
lines changed

‎common-core/src/main/java/com/yz/common/core/utils/FileUtils.java‎

Lines changed: 204 additions & 158 deletions
Original file line numberDiff line numberDiff line change
@@ -2,6 +2,8 @@
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import sun.misc.BASE64Encoder;
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import java.awt.image.BufferedImage;
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import java.io.*;
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import java.nio.ByteBuffer;
@@ -10,164 +12,208 @@
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public class FileUtils extends org.apache.commons.io.FileUtils {
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private static final Logger logger= LoggerFactory.getLogger(FileUtils.class);
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/**
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* 读取json文件转对象
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* @param path :项目根目录下的路径
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* @param clazz
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* @return
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*/
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public static <T> T readJsonFileToObject(String path, Class<T> clazz) {
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path = FileUtils.class.getResource(path).getFile().toString();
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File file = new File(path);
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try {
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String data = readFileToString(file);
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return com.alibaba.fastjson.JSON.parseObject(data,clazz);
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} catch (IOException e) {
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e.printStackTrace();
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}
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return null;
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}
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/**
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* 删除文件
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* @param path
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* @return
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*/
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public static boolean delFile(String path) {
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try {
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File file = new File(path);
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file.delete();
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return true;
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} catch (Exception e) {
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logger.error("文件删除失败---- 路径：" + path);
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}
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return false;
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}
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/**
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* NIO模式读取
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* @param path
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* @param model
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* @return
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*/
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public static byte[] readFile(String path, String model) {
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RandomAccessFile file = null;
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try {
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file = new RandomAccessFile(path, model);
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FileChannel channel = file.getChannel();
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int size = (int) channel.size();
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ByteBuffer buffer = ByteBuffer.allocate(size);
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channel.read(buffer);
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byte[] array = buffer.array();
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return array;
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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try {
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file.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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return null;
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}
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/**
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* BIO模式读取
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* @param path
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* @param fileSize
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* @return
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*/
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public static byte[] readFile(String path, int fileSize) {
82-
FileInputStream fis = null;
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try {
84-
fis = new FileInputStream(path);
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byte[] data = new byte[fileSize];
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fis.read(data);
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return data;
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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try {
92-
fis.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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return null;
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}
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/**
101-
* 获取图片的宽和高
102-
* @param inputStream
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* @return
15+
private static final Logger logger = LoggerFactory.getLogger(FileUtils.class);
16+
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/**
18+
* 读取json文件转对象
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*
20+
* @param path :项目根目录下的路径
21+
* @param clazz
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* @return
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*/
24+
public static <T> T readJsonFileToObject(String path, Class<T> clazz) {
25+
path = FileUtils.class.getResource(path).getFile().toString();
26+
File file = new File(path);
27+
try {
28+
String data = readFileToString(file);
29+
return com.alibaba.fastjson.JSON.parseObject(data, clazz);
30+
} catch (IOException e) {
31+
e.printStackTrace();
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}
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return null;
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}
35+
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/**
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* 删除文件
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*
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* @param path
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* @return
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*/
42+
public static boolean delFile(String path) {
43+
try {
44+
File file = new File(path);
45+
file.delete();
46+
return true;
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} catch (Exception e) {
48+
logger.error("文件删除失败---- 路径：" + path);
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}
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return false;
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}
52+
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/**
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* NIO模式读取
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*
56+
* @param path
57+
* @param model
58+
* @return
10459
*/
105-
public static String getImageProperty(InputStream inputStream){
106-
try {
107-
BufferedImage bufferedImage = ImageIO.read(inputStream);
108-
int width = bufferedImage.getWidth();
109-
int height = bufferedImage.getHeight();
110-
logger.info("宽度:"+width+"----"+"高度:"+height);
111-
return width+","+height;
112-
} catch (IOException e) {
113-
e.printStackTrace();
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}
115-
return null;
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}
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/**
119-
* 获取图片的宽和高
120-
* @param file
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* @return
60+
public static byte[] readFile(String path, String model) {
61+
RandomAccessFile file = null;
62+
try {
63+
file = new RandomAccessFile(path, model);
64+
FileChannel channel = file.getChannel();
65+
int size = (int) channel.size();
66+
ByteBuffer buffer = ByteBuffer.allocate(size);
67+
channel.read(buffer);
68+
byte[] array = buffer.array();
69+
return array;
70+
} catch (Exception e) {
71+
e.printStackTrace();
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} finally {
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try {
74+
file.close();
75+
} catch (IOException e) {
76+
e.printStackTrace();
77+
}
78+
}
79+
return null;
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}
81+
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/**
83+
* BIO模式读取
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*
85+
* @param path
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* @param fileSize
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* @return
88+
*/
89+
public static byte[] readFile(String path, int fileSize) {
90+
FileInputStream fis = null;
91+
try {
92+
fis = new FileInputStream(path);
93+
byte[] data = new byte[fileSize];
94+
fis.read(data);
95+
return data;
96+
} catch (Exception e) {
97+
e.printStackTrace();
98+
} finally {
99+
try {
100+
fis.close();
101+
} catch (IOException e) {
102+
e.printStackTrace();
103+
}
104+
}
105+
return null;
106+
}
107+
108+
/**
109+
* 获取图片的宽和高
110+
*
111+
* @param inputStream
112+
* @return
113+
*/
114+
public static String getImageProperty(InputStream inputStream) {
115+
try {
116+
BufferedImage bufferedImage = ImageIO.read(inputStream);
117+
int width = bufferedImage.getWidth();
118+
int height = bufferedImage.getHeight();
119+
logger.info("宽度:" + width + "----" + "高度:" + height);
120+
return width + "," + height;
121+
} catch (IOException e) {
122+
e.printStackTrace();
123+
}
124+
return null;
125+
}
126+
127+
/**
128+
* 获取图片的宽和高
129+
*
130+
* @param file
131+
* @return
132+
*/
133+
public static String getImageProperty(File file) {
134+
try {
135+
BufferedImage bufferedImage = ImageIO.read(file);
136+
int width = bufferedImage.getWidth();
137+
int height = bufferedImage.getHeight();
138+
logger.info("宽度:" + width + "----" + "高度:" + height);
139+
return width + "," + height;
140+
} catch (IOException e) {
141+
e.printStackTrace();
142+
}
143+
return null;
144+
}
145+
146+
/**
147+
* 文件重命名
148+
*
149+
* @param path
150+
* @param newFileName
151+
*/
152+
public static void fileRename(String path, String newFileName) {
153+
File oldFile = new File(path);
154+
String parent = oldFile.getParent();
155+
File newFile = new File(parent + "/" + newFileName);
156+
oldFile.renameTo(newFile);
157+
}
158+
159+
/**
160+
* 递归读取文件所在路径
161+
*
162+
* @param filePath 路径
163+
* @param fileName 文件名
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* @return
165+
*/
166+
public static String recursionReadFile(String filePath, String fileName) {
167+
File file = new File(filePath);
168+
File[] files = file.listFiles();
169+
for (File f : files) {
170+
if (f.getName().equals(fileName)) {
171+
return file.getAbsolutePath() + "/" + f.getName();
172+
}
173+
}
174+
175+
for (File f : files) {
176+
String readPath = filePath + "/" + f.getName();
177+
file = new File(readPath);
178+
if (file.isDirectory()) {
179+
return recursionReadFile(readPath, fileName);
180+
}
181+
}
182+
183+
return null;
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}
185+
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/**
187+
* 文件内容转换成base64字符串
188+
*
189+
* @param imgFile
190+
* @return
191+
*/
192+
public static String fileContentToBase64(File imgFile) {// 将图片文件转化为字节数组字符串，并对其进行Base64编码处理
193+
byte[] data = null;
194+
// 读取图片字节数组
195+
try (
196+
InputStream in = new FileInputStream(imgFile);
197+
) {
198+
data = new byte[in.available()];
199+
in.read(data);
200+
} catch (IOException e) {
201+
e.printStackTrace();
202+
}
203+
// 对字节数组Base64编码
204+
BASE64Encoder encoder = new BASE64Encoder();
205+
// 返回Base64编码过的字节数组字符串
206+
return encoder.encode(data);
207+
}
208+
209+
/**
210+
* 文件内容转换成base64字符串
211+
*
212+
* @param imgFilePath 图片本地路径
213+
* @return
122214
*/
123-
public static String getImageProperty(File file){
124-
try {
125-
BufferedImage bufferedImage = ImageIO.read(file);
126-
int width = bufferedImage.getWidth();
127-
int height = bufferedImage.getHeight();
128-
logger.info("宽度:"+width+"----"+"高度:"+height);
129-
return width+","+height;
130-
} catch (IOException e) {
131-
e.printStackTrace();
132-
}
133-
return null;
134-
}
135-
136-
/**
137-
* 文件重命名
138-
* @param path
139-
* @param newFileName
140-
*/
141-
public static void fileRename(String path,String newFileName){
142-
File oldFile = new File(path);
143-
String parent = oldFile.getParent();
144-
File newFile = new File(parent+"/"+newFileName);
145-
oldFile.renameTo(newFile);
146-
}
147-
148-
/**
149-
* 递归读取文件所在路径
150-
* @param filePath 路径
151-
* @param fileName 文件名
152-
* @return
153-
*/
154-
public static String recursionReadFile(String filePath,String fileName){
155-
File file = new File(filePath);
156-
File[] files = file.listFiles();
157-
for (File f:files){
158-
if (f.getName().equals(fileName)){
159-
return file.getAbsolutePath()+"/"+f.getName();
160-
}
161-
}
162-
163-
for (File f:files){
164-
String readPath=filePath+"/"+f.getName();
165-
file = new File(readPath);
166-
if (file.isDirectory()){
167-
return recursionReadFile(readPath, fileName);
168-
}
169-
}
170-
171-
return null;
172-
}
215+
public static String fileContentToBase64(String imgFilePath) {// 将图片文件转化为字节数组字符串，并对其进行Base64编码处理
216+
File file = new File(imgFilePath);
217+
return fileContentToBase64(file);
218+
}
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}

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