springboot跳转到其它页面

一、单纯跳转

有时候我们需要将用户提交的请求跳转到其它页面，下面代码即可实现这个功能

@Controller
@RequestMapping("login")
@Api("模拟登陆")
public class LoginController {
    private final static Logger logger = LoggerFactory.getLogger(LoginController.class);

    @GetMapping("redirect")
    @ApiOperation("跳转到百度")
    public void doLogin(HttpServletRequest request, HttpServletResponse response) throws IOException {
        logger.info(request.getPathInfo());
        response.sendRedirect("http://www.baidu.com");
    }
}

 二、模拟登陆

有时候我们需要在后端模拟前端登陆页面的登陆，登陆成功后跳转

@GetMapping("redirect2")
    @ApiOperation("跳转到百度")
    public void doLogin2(HttpServletRequest request, HttpServletResponse response) throws IOException {
        //创建HttpClient
        CloseableHttpClient httpClient = HttpClients.createDefault();
        //登陆网址
        String loginUrl = "http://xxx.com.cn/api/user/login";
        HttpPost httpPost = new HttpPost(loginUrl);
        //以Post方式请求，设置登录用户名和密码
        List<NameValuePair> nameValuePairs = new ArrayList<>();
        nameValuePairs.add(new BasicNameValuePair("loginName", "xxxxx")); //这里改为自己的用户名
        nameValuePairs.add(new BasicNameValuePair("loginPwd", "123456"));//这里改为自己的密码
        httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
        CloseableHttpResponse httpResponse = httpClient.execute(httpPost);
        int statusCode = httpResponse.getStatusLine().getStatusCode();
        logger.info("statusCode:" + statusCode);
        InputStream inputStream = httpResponse.getEntity().getContent();
        BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
        String line;
        while ((line = reader.readLine()) != null) {
            logger.info(line);
        }
        inputStream.close();
        reader.close();
        //登陆成功后跳转到百度
        response.sendRedirect("http://www.baidu.com");
    }

三、模拟登陆后访问内部页面

登陆后访问百度其实没有什么意义，因为百度本来也不需要登陆；

如果我们登陆后可以去访问一些本来需要登陆才能访问的页面，就可以获取更多有价值的信息