這期內(nèi)容當(dāng)中小編將會給大家?guī)碛嘘P(guān)如何使用JSON格式數(shù)據(jù)登錄SpringSecurity,文章內(nèi)容豐富且以專業(yè)的角度為大家分析和敘述,閱讀完這篇文章希望大家可以有所收獲。
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創(chuàng)建Spring Boot工程
首先創(chuàng)建SpringBoot工程,添加SpringSecurity依賴,如下:
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-security</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency>
添加Security配置
創(chuàng)建SecurityConfig,完成SpringSecurity的配置,如下:
@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {
@Bean
PasswordEncoder passwordEncoder() {
return new BCryptPasswordEncoder();
}
@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.inMemoryAuthentication().withUser("zhangsan").password("$2a$10$2O4EwLrrFPEboTfDOtC0F.RpUMk.3q3KvBHRx7XXKUMLBGjOOBs8q").roles("user");
}
@Override
public void configure(WebSecurity web) throws Exception {
}
@Override
protected void configure(HttpSecurity http) throws Exception {
http.authorizeRequests()
.anyRequest().authenticated()
.and()
.formLogin()
.loginProcessingUrl("/doLogin")
.successHandler(new AuthenticationSuccessHandler() {
@Override
public void onAuthenticationSuccess(HttpServletRequest req, HttpServletResponse resp, Authentication authentication) throws IOException, ServletException {
RespBean ok = RespBean.ok("登錄成功!",authentication.getPrincipal());
resp.setContentType("application/json;charset=utf-8");
PrintWriter out = resp.getWriter();
out.write(new ObjectMapper().writeValueAsString(ok));
out.flush();
out.close();
}
})
.failureHandler(new AuthenticationFailureHandler() {
@Override
public void onAuthenticationFailure(HttpServletRequest req, HttpServletResponse resp, AuthenticationException e) throws IOException, ServletException {
RespBean error = RespBean.error("登錄失敗");
resp.setContentType("application/json;charset=utf-8");
PrintWriter out = resp.getWriter();
out.write(new ObjectMapper().writeValueAsString(error));
out.flush();
out.close();
}
})
.loginPage("/login")
.permitAll()
.and()
.logout()
.logoutUrl("/logout")
.logoutSuccessHandler(new LogoutSuccessHandler() {
@Override
public void onLogoutSuccess(HttpServletRequest req, HttpServletResponse resp, Authentication authentication) throws IOException, ServletException {
RespBean ok = RespBean.ok("注銷成功!");
resp.setContentType("application/json;charset=utf-8");
PrintWriter out = resp.getWriter();
out.write(new ObjectMapper().writeValueAsString(ok));
out.flush();
out.close();
}
})
.permitAll()
.and()
.csrf()
.disable()
.exceptionHandling()
.accessDeniedHandler(new AccessDeniedHandler() {
@Override
public void handle(HttpServletRequest req, HttpServletResponse resp, AccessDeniedException e) throws IOException, ServletException {
RespBean error = RespBean.error("權(quán)限不足,訪問失敗");
resp.setStatus(403);
resp.setContentType("application/json;charset=utf-8");
PrintWriter out = resp.getWriter();
out.write(new ObjectMapper().writeValueAsString(error));
out.flush();
out.close();
}
});
}
}這里的配置雖然有點(diǎn)長,但是很基礎(chǔ),配置含義也比較清晰,首先提供BCryptPasswordEncoder作為PasswordEncoder,可以實(shí)現(xiàn)對密碼的自動加密加鹽,非常方便,然后提供了一個(gè)名為zhangsan的用戶,密碼是123,角色是user,最后配置登錄邏輯,所有的請求都需要登錄后才能訪問,登錄接口是/doLogin,用戶名的key是username,密碼的key是password,同時(shí)配置登錄成功、登錄失敗以及注銷成功、權(quán)限不足時(shí)都給用戶返回JSON提示,另外,這里雖然配置了登錄頁面為/login,實(shí)際上這不是一個(gè)頁面,而是一段JSON,在LoginController中提供該接口,如下:
@RestController
@ResponseBody
public class LoginController {
@GetMapping("/login")
public RespBean login() {
return RespBean.error("尚未登錄,請登錄");
}
@GetMapping("/hello")
public String hello() {
return "hello";
}
}這里/login只是一個(gè)JSON提示,而不是頁面, /hello則是一個(gè)測試接口。
OK,做完上述步驟就可以開始測試了,運(yùn)行SpringBoot項(xiàng)目,訪問/hello接口,結(jié)果如下:

此時(shí)先調(diào)用登錄接口進(jìn)行登錄,如下:

登錄成功后,再去訪問/hello接口就可以成功訪問了。
使用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(jìn)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(rèn)的用戶名密碼提取在UsernamePasswordAuthenticationFilter過濾器中,部分源碼如下:
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(rèn)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(gè)過濾器替換掉即可,自定義過濾器如下:
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:
@Override
protected void configure(HttpSecurity http) throws Exception {
http.authorizeRequests().anyRequest().authenticated()
.and()
.formLogin()
.and().csrf().disable();
http.addFilterAt(customAuthenticationFilter(), UsernamePasswordAuthenticationFilter.class);
}
@Bean
CustomAuthenticationFilter 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.setContentType("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;
}將自定義的CustomAuthenticationFilter類加入進(jìn)來即可,接下來就可以使用JSON進(jìn)行登錄了,如下:

上述就是小編為大家分享的如何使用JSON格式數(shù)據(jù)登錄SpringSecurity了,如果剛好有類似的疑惑,不妨參照上述分析進(jìn)行理解。如果想知道更多相關(guān)知識,歡迎關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道。
新聞名稱:如何使用JSON格式數(shù)據(jù)登錄SpringSecurity
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