<%@ page info="Random Image Show"
    pageEncoding="UTF-8" contentType="image/jpg"
    autoFlush="true" buffer="16kb" session="false" import="java.io.FileInputStream"
%><%
String[] imgpaths = {
    "D:/images/testimg1.jpg",
    "D:/images/testimg2.jpg",
    "D:/images/testimg3.jpg"
};
ServletOutputStream sos = response.getOutputStream();
FileInputStream fis = new FileInputStream(imgpaths[(int) (Math.random() * imgpaths.length)]);
byte[] buf = new byte[100];  //缓冲区大小
int len = 0;
while ((len = fis.read(buf)) != -1) {
    sos.write(buf, 0, len);
}
sos.flush();
sos.close();
fis.close();
%>

------解决方案--------------------
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HTML code<%@ page info="Random Image Show"
    pageEncoding="UTF-8" contentType="image/jpg"
    autoFlush="true" buffer="16kb" session="false" import="java.io.FileInputStream"
%><%
String[] imgpaths = {
    "D:/images/testimg1.jpg",
    "D:/images/testimg2.jpg",
    "D:/images/testimg3.jpg"
};
ServletOutputStream sos = response.getOutputStream();
FileInputStream fis = new FileInputStre…