IllegalStateException
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response.setContentType("image/jpg");
FileInputStream in = new FileInputStream(new File("c:/123.jpg"));
byte[] buf = new byte[1024];
int len = 0;
while ((len = in.read(buf)) != -1) {
response.getOutputStream().write(buf, 0, len);
FileInputStream in = new FileInputStream(new File("c:/123.jpg"));
byte[] buf = new byte[1024];
int len = 0;
while ((len = in.read(buf)) != -1) {
response.getOutputStream().write(buf, 0, len);
}
response字节流 字符流
0 0
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