HermesServlet.java 文件源码

@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
    Center center = ApplicationContextHelper.getBean(Constant.CENTERS_BEAN_NAME, Centers.class)
            .getCenterBySessionId(req.getParameter("sessionId"));
    ServletOutputStream out = resp.getOutputStream();
    try {
        // hex to bytes
        byte[] bytes = CoderUtils.hexStringToByteArray(req.getParameter("data"));
        // 解密
        String text = new String(RsaUtils.decryptByPublicKey(bytes, center.getPublicKey()));
        // 通过name选取方法并调用
        Object result = invokeMethodByName(req.getParameter("name"), text);
        byte[] respData = JSON.toJSONString(result).getBytes("utf-8");
        if (respData.length > center.getLength() - Constant.RSA_RESERVED_LENGTH) {
            throw new Exception("response data is too big");
        }
        // 返回加密
        respData = RsaUtils.encryptByPublicKey(respData, center.getPublicKey());
        out.write(respData);
    } catch (Exception e) {
        e.printStackTrace();
        out.write(500);
    } finally {
        out.close();
    }
}