String 写入MultipartFile
时间: 2023-10-17 09:37:55 浏览: 80
java POI 通过MultipartFile删除Excel文件解析写入数据库
要将String写入MultipartFile,可以使用MockMultipartFile类或自定义实现MultipartFile接口的方式。
使用MockMultipartFile类的示例代码如下:
1. 先将String转换为字节数组:
byte[] scriptByte = scriptContent.getBytes(StandardCharsets.UTF_8);
2. 创建MockMultipartFile对象,并传入文件名和字节数组:
MultipartFile multipartFile = new MockMultipartFile("filename", scriptByte);
自定义实现MultipartFile接口的方式示例代码如下:
1. 将String转换为字节数组:
byte[] scriptByte = scriptContent.getBytes(StandardCharsets.UTF_8);
2. 创建一个自定义的MultipartFile对象,实现MultipartFile接口的所有方法,并使用字节数组作为文件内容:
MultipartFile customMultipartFile = new MultipartFile() {
@Override
public String getName() {
return "filename";
}
@Override
public String getOriginalFilename() {
return "filename";
}
@Override
public String getContentType() {
return "text/plain";
}
@Override
public boolean isEmpty() {
return scriptContent.isEmpty();
}
@Override
public long getSize() {
return scriptByte.length;
}
@Override
public byte[] getBytes() {
return scriptByte;
}
@Override
public InputStream getInputStream() throws IOException {
return new ByteArrayInputStream(scriptByte);
}
@Override
public void transferTo(File dest) throws IOException, IllegalStateException {
try (OutputStream outputStream = new FileOutputStream(dest)) {
outputStream.write(scriptByte);
}
}
};
这样,你就可以将String写入MultipartFile了。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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