OutputStream os = response.getOutputStream(); // 页面输出流,jsp/servlet都可以
File f = new File("upload/image/2008112102425.jpg"); // 你的文件
InputStream is = new FileInputStream(f); // 文件输入流
byte[] bs = new byte[1024]; // 读取缓冲区
int len;
while((len=is.read(bs))!=-1){ // 循环读取
os.write(bs,0,len); // 写入到输出流
}
is.close(); // 关闭
os.close(); // 关闭
报错,图片都存在
java.lang.IllegalStateException: getWriter() has already been called for this response
org.apache.coyote.tomcat5.CoyoteResponse.getOutputStream(CoyoteResponse.java:568)
org.apache.coyote.tomcat5.CoyoteResponseFacade.getOutputStream(CoyoteResponseFacade.java:148)
hospital.servlet.getimages.doGet(getimages.java:20)
javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
File f = new File("upload/image/2008112102425.jpg"); // 你的文件
InputStream is = new FileInputStream(f); // 文件输入流
byte[] bs = new byte[1024]; // 读取缓冲区
int len;
while((len=is.read(bs))!=-1){ // 循环读取
os.write(bs,0,len); // 写入到输出流
}
is.close(); // 关闭
os.close(); // 关闭
报错,图片都存在
java.lang.IllegalStateException: getWriter() has already been called for this response
org.apache.coyote.tomcat5.CoyoteResponse.getOutputStream(CoyoteResponse.java:568)
org.apache.coyote.tomcat5.CoyoteResponseFacade.getOutputStream(CoyoteResponseFacade.java:148)
hospital.servlet.getimages.doGet(getimages.java:20)
javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
public void doGet(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
response.setContentType(CONTENT_TYPE);
OutputStream os = response.getOutputStream(); // 页面输出流,jsp/servlet都可以
File f = new File(request.getSession().getServletContext().getRealPath("/")+"upload/image/2008112102425.jpg"); // 你的文件
InputStream is = new FileInputStream(f); // 文件输入流
byte[] bs = new byte[1024]; // 读取缓冲区
int len;
while((len=is.read(bs))!=-1){ // 循环读取
os.write(bs,0,len); // 写入到输出流
}
is.close(); // 关闭
os.close(); // 关闭
}