outputstream转换byte数组
时间: 2023-05-24 20:03:21 浏览: 2854
A:
可以使用ByteArrayOutputStream来实现将OutputStream转换为byte数组。示例代码如下:
```java
OutputStream outputStream = ...; // 定义需要转换的OutputStream
ByteArrayOutputStream baos = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int length;
while ((length = outputStream.read(buffer)) != -1) {
baos.write(buffer, 0, length);
}
byte[] bytes = baos.toByteArray(); // 将OutputStream转换为byte数组
```
相关问题
outputstream转byte数组
将OutputStream转换为byte数组的方法如下:
1. 创建一个ByteArrayOutputStream对象,用于存储输出流中的数据。
2. 创建一个byte数组,用于存储转换后的数据。
3. 从输出流中读取数据,并将其写入ByteArrayOutputStream对象中。
4. 调用ByteArrayOutputStream对象的toByteArray()方法,将其转换为byte数组。
示例代码如下:
```
OutputStream outputStream = new FileOutputStream("test.txt");
byte[] data = "Hello, world!".getBytes();
outputStream.write(data);
outputStream.close();
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int len;
while ((len = outputStream.read(buffer)) != -1) {
byteArrayOutputStream.write(buffer, , len);
}
byte[] result = byteArrayOutputStream.toByteArray();
```
outputstream转byte数组、
inputstream转byte数组、byte数组转inputstream、multipartfile转byte数组、byte数组转multipartfile以及string转byte数组的方法。
将outputstream转为byte数组的方法是将outputstream对象转为bytearrayoutputstream对象,然后调用toByteArray()方法即可获得byte数组。例如:
```
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
// 向outputStream写入数据
byte[] byteArray = outputStream.toByteArray();
```
将inputstream转为byte数组的方法是创建一个ByteArrayOutputStream对象,然后使用BufferedInputStream从inputstream中读取数据,并通过write方法写入bytearrayoutputstream对象中,最后调用toByteArray()方法即可获得byte数组。例如:
```
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
InputStream inputStream = new FileInputStream(file);
BufferedInputStream bufferedInputStream = new BufferedInputStream(inputStream);
byte[] buffer = new byte<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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