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struts2 getOutputStream() has already been called for this response
public String execute() throws Exception{
HttpServletResponse response = ServletActionContext.getResponse();
FileInputStream in = new FileInputStream(filePath);
sout = response.getOutputStream();
byte b[] = new byte[1024];
int len = 0;
while ((len = in.read(b)) > 0) {
sout.write(b,0,len);
}
sout.flush();
sout.close();
in.close();
return SUCCESS;
}
HttpServletResponse response = ServletActionContext.getResponse();
FileInputStream in = new FileInputStream(filePath);
sout = response.getOutputStream();
byte b[] = new byte[1024];
int len = 0;
while ((len = in.read(b)) > 0) {
sout.write(b,0,len);
}
sout.flush();
sout.close();
in.close();
return SUCCESS;
}
...全文
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蜗牛- 2015-12-06
一个请求只能输出一个响应，这里给了两个响应。
HttpServletResponse response = ServletActionContext.getResponse();
FileInputStream in = new FileInputStream(filePath);
sout = response.getOutputStream(); -- 第一次响应
byte b[] = new byte[1024];
int len = 0;
while ((len = in.read(b)) > 0) {
sout.write(b,0,len);
}
sout.flush();
sout.close();
in.close();
return SUCCESS; -- 第二次响应
servlet 的四种响应方式 参考 servlet的四种响应
楼主应该想做Struts2的文件下载吧，参考 Struts2文件下载
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