Spring security 重寫Filter實現(xiàn)json登錄
在使用SpringSecurity中，大伙都知道默認的登錄數(shù)據(jù)是通過key/value的形式來傳遞的，默認情況下不支持JSON格式的登錄數(shù)據(jù)，如果有這種需求，就需要自己來解決，本文主要解決此問題：
JSON登錄
上面演示的是一種原始的登錄方案，如果想將用戶名密碼通過JSON的方式進行傳遞，則需要自定義相關(guān)過濾器，通過分析源碼我們發(fā)現(xiàn)，默認的用戶名密碼提取在UsernamePasswordAuthenticationFilter過濾器中，部分源碼如下：
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public class UsernamePasswordAuthenticationFilter extends AbstractAuthenticationProcessingFilter { public static final String SPRING_SECURITY_FORM_USERNAME_KEY = "username"; public static final String SPRING_SECURITY_FORM_PASSWORD_KEY = "password"; private String usernameParameter = SPRING_SECURITY_FORM_USERNAME_KEY; private String passwordParameter = SPRING_SECURITY_FORM_PASSWORD_KEY; private boolean postOnly = true; public UsernamePasswordAuthenticationFilter() { super(new AntPathRequestMatcher("/login", "POST")); } public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response) throws AuthenticationException { if (postOnly && !request.getMethod().equals("POST")) { throw new AuthenticationServiceException("Authentication method not supported: " + request.getMethod()); } String username = obtainUsername(request); String password = obtainPassword(request); if (username == null) { username = ""; } if (password == null) { password = ""; } username = username.trim(); UsernamePasswordAuthenticationToken authRequest = new UsernamePasswordAuthenticationToken(username, password); // Allow subclasses to set the "details" property setDetails(request, authRequest); return this.getAuthenticationManager().authenticate(authRequest); } protected String obtainPassword(HttpServletRequest request) { return request.getParameter(passwordParameter); } protected String obtainUsername(HttpServletRequest request) { return request.getParameter(usernameParameter); } //... //...} |
從這里可以看到，默認的用戶名/密碼提取就是通過request中的getParameter來提取的，如果想使用JSON傳遞用戶名密碼，只需要將這個過濾器替換掉即可，自定義過濾器如下：
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public class CustomAuthenticationFilter extends UsernamePasswordAuthenticationFilter { @Override public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response) throws AuthenticationException { if (request.getContentType().equals(MediaType.APPLICATION_JSON_UTF8_VALUE) || request.getContentType().equals(MediaType.APPLICATION_JSON_VALUE)) { ObjectMapper mapper = new ObjectMapper(); UsernamePasswordAuthenticationToken authRequest = null; try (InputStream is = request.getInputStream()) { Map<String, String> authenticationBean = mapper.readValue(is, Map.class); authRequest = new UsernamePasswordAuthenticationToken(authenticationBean.get("username"), authenticationBean.get("password")); } catch (IOException e) { e.printStackTrace(); authRequest = new UsernamePasswordAuthenticationToken("", ""); } finally { setDetails(request, authRequest); return this.getAuthenticationManager().authenticate(authRequest); } } else { return super.attemptAuthentication(request, response); } }} |
這里只是將用戶名/密碼的獲取方案重新修正下，改為了從JSON中獲取用戶名密碼，然后在SecurityConfig中作出如下修改：
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@Overrideprotected void configure(HttpSecurity http) throws Exception { http.authorizeRequests().anyRequest().authenticated().and().formLogin().and().csrf().disable(); http.addFilterAt(customAuthenticationFilter(), UsernamePasswordAuthenticationFilter.class);}@BeanCustomAuthenticationFilter customAuthenticationFilter() throws Exception { CustomAuthenticationFilter filter = new CustomAuthenticationFilter(); filter.setAuthenticationSuccessHandler(new AuthenticationSuccessHandler() { @Override public void onAuthenticationSuccess(HttpServletRequest req, HttpServletResponse resp, Authentication authentication) throws IOException, ServletException { resp.setContentType("application/json;charset=utf-8"); PrintWriter out = resp.getWriter(); RespBean respBean = RespBean.ok("登錄成功!"); out.write(new ObjectMapper().writeValueAsString(respBean)); out.flush(); out.close(); } }); filter.setAuthenticationFailureHandler(new AuthenticationFailureHandler() { @Override public void onAuthenticationFailure(HttpServletRequest req, HttpServletResponse resp, AuthenticationException e) throws IOException, ServletException { resp.setContentype("application/json;charset=utf-8"); PrintWriter out = resp.getWriter(); RespBean respBean = RespBean.error("登錄失敗!"); out.write(new ObjectMapper().writeValueAsString(respBean)); out.flush(); out.close(); } }); filter.setAuthenticationManager(authenticationManagerBean()); return filter; } |
搞定~
Spring security5 使用json登錄
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public class CustomUsernamePasswordAuthenticationFilter extends UsernamePasswordAuthenticationFilter { @Override @SneakyThrows(IOException.class) //lombok try catch public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response) throws AuthenticationException { if (request.getContentType().contains(MediaType.APPLICATION_JSON_VALUE)) { ObjectMapper mapper = new ObjectMapper(); Map<String,String> map = mapper.readValue(request.getInputStream(), Map.class); String username = map.get(super.getUsernameParameter()); String password = map.get(super.getPasswordParameter()); if (username == null) { username = ""; } if (password == null) { password = ""; } username = username.trim(); UsernamePasswordAuthenticationToken authRequest = new UsernamePasswordAuthenticationToken( username, password); setDetails(request, authRequest); return this.getAuthenticationManager().authenticate(authRequest); } return super.attemptAuthentication(request, response); }} |
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@EnableWebSecuritypublic class SecurityConfig extends WebSecurityConfigurerAdapter { @Override protected void configure(HttpSecurity http) throws Exception { http.addFilterAt(usernamePasswordAuthenticationFilter(), UsernamePasswordAuthenticationFilter.class) } CustomUsernamePasswordAuthenticationFilter usernamePasswordAuthenticationFilter() throws Exception { CustomUsernamePasswordAuthenticationFilter filter = new CustomUsernamePasswordAuthenticationFilter(); filter.setAuthenticationManager(super.authenticationManagerBean()); filter.setFilterProcessesUrl(customSecurityProperties.getLoginUrl()); //處理登錄成功 filter.setAuthenticationSuccessHandler(new AuthenticationSuccessHandler()); //處理登錄失敗 filter.setAuthenticationFailureHandler(new AuthenticationFailureHandler()); return filter; }} |
以上為個人經(jīng)驗，希望能給大家一個參考，也希望大家多多支持服務器之家。
原文鏈接：https://haoxuanli.blog.csdn.net/article/details/104409200
