HTTP401状态码返回

代码

HttpServletResponse response = (HttpServletResponse) servletResponse;

response.setContentType("application/json;charset=UTF-8");
response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);

PrintWriter out = response.getWriter();
Map<String,Object> map = new HashMap<String,Object>();
map.put("code",401);
map.put("message","未登录");
out.write(objectMapper.writeValueAsString(map));
out.flush();
out.close();

返回结果

{
    "code": 401,
    "message": "未登录"
}

最后

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