web.xml 新增<jsp-config>

本文介绍JSP2.0中web.xml文件新增的&lt;jsp-config&gt;元素及其子元素,包括&lt;taglib&gt;和&lt;jsp-property-group&gt;。详细解释了&lt;jsp-property-group&gt;下的八个子元素的功能,如设定JSP网页的编码、是否支持EL语法等。

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jsp2.0 web.xml 新增<jsp-config>元素
2007-11-10 下午 04:27
<jsp-config> 元素主要用来设定JSP 相关配置, <jsp-config> 包括<taglib> 和
<jsp-property-group> 两个子元素。其中<taglib>元素在JSP 1.2 时就已经存在;而
<jsp-property-group>是JSP 2.0 新增的元素。
<jsp-property-group>元素主要有八个子元素,它们分别为:
<description>:设定的说明;
<display-name>:设定名称;
<url-pattern>:设定值所影响的范围,如:/CH2 或 /*.jsp;
<el-ignored>:若为true,表示不支持EL 语法;
<scripting-invalid>:若为true,表示不支持<% scripting %>语法;
<page-encoding>:设定JSP 网页的编码;
<include-prelude>:设置JSP 网页的抬头,扩展名为.jspf;
<include-coda>:设置JSP 网页的结尾,扩展名为.jspf。
package com.kucun; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.web.servlet.support.SpringBootServletInitializer; @SpringBootApplication( ) public class DemoApplication extends SpringBootServletInitializer { public static void main(String[] args) { // // ConfigurableApplicationContext ctx = SpringApplication.run(Application.class, args); // Arrays.stream(ctx.getBeanNamesForType(SecurityFilterChain.class)) // .forEach(System.out::println); // // // // 测试密码加密示例 // BCryptPasswordEncoder encoder = new BCrypt(); // String rawPassword = "987987"; // String encodedPassword = encoder.encode(rawPassword); // System.out.println("加密后的密码:" + encodedPassword); SpringApplication.run(DemoApplication.class, args); } }<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>KuCun2</groupId> <artifactId>KuCun2</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <name>KuCun2</name> <description/> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.3.12.RELEASE</version> <!-- 请根据需要选择版本 --> <relativePath/> <!-- lookup parent from repository --> </parent> <properties> <webVersion>4.0</webVersion> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <protobuf.version>3.21.12</protobuf.version> </properties> <dependencies> <dependency> <groupId>javax</groupId> <artifactId>javaee-api</artifactId> <version>8.0</version> <scope>provided</scope> </dependency> <dependency> <groupId>org.glassfish.web</groupId> <artifactId>javax.servlet.jsp.jstl</artifactId> <version>1.2.4</version> </dependency> <!-- Spring Boot Starter Data JPA --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency> <!-- MySQL Connector --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>8.0.33</version> <exclusions> <exclusion> <groupId>com.google.protobuf</groupId> <artifactId>protobuf-java</artifactId> </exclusion> </exclusions> </dependency> <!-- Optional: Lombok for reducing boilerplate code --> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional>true</optional> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> <exclusions> <exclusion> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-security</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> <exclusions> <exclusion> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> <scope>provided</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> <exclusions> <exclusion> <groupId>com.fasterxml.jackson.datatype</groupId> <artifactId>jackson-datatype-jsr310</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>com.fasterxml.jackson.datatype</groupId> <artifactId>jackson-datatype-jsr310</artifactId> </dependency> <!-- Jackson Databind --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> </dependency> <!-- Jackson Core --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> </dependency> <!-- Jackson Annotations --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-annotations</artifactId> </dependency> <dependency> <groupId>org.mindrot</groupId> <artifactId>jbcrypt</artifactId> <version>0.4</version> </dependency> <dependency> <groupId>com.google.protobuf</groupId> <artifactId>protobuf-java</artifactId> <version>${protobuf.version}</version> </dependency> <dependency> <groupId>org.yaml</groupId> <artifactId>snakeyaml</artifactId> <version>1.30</version> <!-- 统一版本号 --> </dependency> </dependencies> <build> <plugins> <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> <configuration> <source>1.8</source> <target>1.8</target> <compilerArgs> <arg>-parameters</arg> </compilerArgs> </configuration> </plugin> <plugin> <artifactId>maven-war-plugin</artifactId> <version>2.6</version> <configuration> <failOnMissingWebXml>false</failOnMissingWebXml> </configuration> </plugin> </plugins> </build> </project> package com.kucun.Config.user; import java.util.Collection; import com.kucun.data.entity.User; public class CustomUserDetails /*implements UserDetails*/ { // /** // * // */ // private static final long serialVersionUID = 1L; // private final String andy; // 对应andy字段 // private final String name; // private final int role; // private final String password; // private final User users; // private final Collection<? extends GrantedAuthority> authorities; // // public CustomUserDetails(User user, Collection<? extends GrantedAuthority> authorities) { // this.andy = user.getAndy(); // this.name = user.getName(); // this.role = user.getRole(); // this.password = user.getPass(); // user.setPass(null); // this.users=user; // this.authorities = authorities; // } // // // 实现UserDetails接口方法 // @Override public String getUsername() { return andy; } // @Override public String getPassword() { return password; } // @Override public Collection<? extends GrantedAuthority> getAuthorities() { return authorities; } // // // 自定义字段访问方法 // public String getName() { return name; } // public User getUser() { return users; } // public int getRole() { return role; } // // // 其他必要方法 // @Override public boolean isAccountNonExpired() { return true; } // @Override public boolean isAccountNonLocked() { return true; } // @Override public boolean isCredentialsNonExpired() { return true; } // @Override public boolean isEnabled() { return true; } }package com.kucun.Config.Role; import java.util.Collections; import java.util.HashMap; import java.util.List; import java.util.Map; import javax.annotation.PostConstruct; import javax.json.Json; import org.springframework.stereotype.Component; import com.fasterxml.jackson.core.JsonProcessingException; import com.fasterxml.jackson.databind.ObjectMapper; /** * 权限转化 * @author Administrator * */ @Component public class RoleConverter { // private static final Map<Integer, String> ROLE_MAP = new HashMap<>(); // // @PostConstruct // public void init() { // ROLE_MAP.put(0, "ROLE_ADMIN"); // ROLE_MAP.put(1, "ROLE_USER"); // ROLE_MAP.put(2, "ROLE_MANAGER"); // ROLE_MAP.put(3, "ROLE_AUDITOR"); // } // // public List<GrantedAuthority> convert(int roleCode) { // ObjectMapper mapper = new ObjectMapper(); // try { // System.out.println(mapper.writeValueAsString(Collections.singletonList( // new SimpleGrantedAuthority(ROLE_MAP.getOrDefault(roleCode, "ROLE_GUEST")))).toString());//输出[{"authority":"ROLE_ADMIN"}] // } catch (JsonProcessingException e) { // // TODO Auto-generated catch block // e.printStackTrace(); // } // // return Collections.singletonList( // new SimpleGrantedAuthority(ROLE_MAP.getOrDefault(roleCode, "ROLE_GUEST")) // ); // } // }package com.kucun.Config; // 2. 基础安全配置 //@Configuration //@EnableWebSecurity // 启用Web安全功能 public class SecurityConfig //extends WebSecurityConfigurerAdapter { // @Override // public void configure(WebSecurity web) { // web.ignoring().antMatchers("/check-session"); // } // // 添加自定义Controller // @RestController // public static class SessionCheckController { // @GetMapping("/check-session") // public ResponseEntity<?> checkSession(HttpServletRequest request) { // return request.getSession(false) != null ? // ResponseEntity.ok().build() : // ResponseEntity.status(HttpStatus.UNAUTHORIZED).build(); // } // } // /** // * 核心安全过滤器链配置 // * @param http HTTP安全构建器 // * @return 安全过滤器链 // * @throws Exception 配置异常 // * // * █ 配置逻辑说明: // * 1. authorizeHttpRequests: 定义访问控制规则 // * 2. formLogin: 配置表单登录 // * 3. logout: 配置注销行为 // * 4. exceptionHandling: 处理权限异常[^3] // */ // // // 修正后的配置方法 // @Override // protected void configure(HttpSecurity http) throws Exception { // // // // http // .csrf().disable() // .sessionManagement() // .sessionCreationPolicy(SessionCreationPolicy.ALWAYS) // .invalidSessionUrl("/login.html?session=invalid") // .maximumSessions(1) // .maxSessionsPreventsLogin(false) // .and() // .and() // .addFilterBefore(jsonAuthFilter(), UsernamePasswordAuthenticationFilter.class) // 关键配置 // .authorizeRequests() // .antMatchers("/login.html", "/users/login").permitAll() // .antMatchers("/js/**", "/css/**", "/fonts/**", "/images/**","/check-session","/main/bootstrap-3.3.7-dist/**").permitAll() // .antMatchers("/users/guanli/**").hasAuthority("ROLE_ADMIN") // .anyRequest().authenticated() // .and() // .formLogin().disable() //// .loginPage("/login.html") //// .loginProcessingUrl("/users/login") //// //// .successHandler(ajaxAuthenticationSuccessHandler()) // 自定义成功处理器 //// .failureHandler(ajaxAuthenticationFailureHandler()) // 自定义失败处理器 //// .defaultSuccessUrl("/index.html") //// .failureUrl("/login.html?error=true") //// .usernameParameter("andy") // 修改用户名参数名 //// .passwordParameter("pass") // 修改密码参数名 //// .and() // // .logout() // .logoutUrl("/logout") // .logoutSuccessUrl("/login.html") // .and() // .csrf() // .ignoringAntMatchers("/users/login") // .and() // .headers() // .frameOptions().sameOrigin() // .and() // .exceptionHandling() // .accessDeniedHandler(accessDeniedHandler()); // 统一使用Handler // } // // // // // // // 返回JSON格式的成功响应 // @Bean // public AuthenticationSuccessHandler ajaxAuthenticationSuccessHandler() { // return (request, response, authentication) -> { // // // // // 强制创建服务端会话 // request.getSession(true); // // // // // String contextPath = request.getContextPath(); // HttpSession session = request.getSession(true); // Cookie cookie = new Cookie("JSESSIONID", session.getId()); // cookie.setPath(contextPath.isEmpty() ? "/" : contextPath + "/"); // cookie.setMaxAge(1800); // 30分钟 // response.addCookie(cookie); // // // //构建安全响应数据 // Map<String, Object> responseData = new HashMap<>(); // responseData.put("sessionId", request.getSession().getId()); // responseData.put("userInfo",Collections.unmodifiableMap(new HashMap<String, Object>() {/** // * // */ // private static final long serialVersionUID = 1L; // // { // put("Name", ((CustomUserDetails)authentication.getPrincipal()).getName()); // put("role", ((CustomUserDetails)authentication.getPrincipal()).getRole()); // }})); // // // // // 统一返回JSON格式 // response.setContentType(MediaType.APPLICATION_JSON_VALUE); // // new ObjectMapper().writeValue(response.getWriter(), responseData); // // // // // // // // // // response.setContentType(MediaType.APPLICATION_JSON_VALUE); // CustomUserDetails userDetails = (CustomUserDetails) authentication.getPrincipal(); // // response.setStatus(HttpStatus.OK.value()); // System.out.println(authentication.getPrincipal()+""+authentication.getName()); // // if (request.getHeader("X-Requested-With") == null) { // 非AJAX请求 // response.sendRedirect("/index.html"); // } else { // // //String re=userDetails.getUser().toString() // new ObjectMapper().writeValue(response.getWriter(), userDetails.getUser() // ); // // } // // // // // // // }; // } // // // 返回401状态码和错误信息 // @Bean // public AuthenticationFailureHandler ajaxAuthenticationFailureHandler() { // return (request, response, exception) -> { // if (request.getHeader("X-Requested-With") == null) { // response.sendRedirect("/login.html?error=true"); // } else { // response.setStatus(HttpStatus.UNAUTHORIZED.value()); // response.getWriter().write("{\"error\":\"Authentication failed\"}"); // } // }; // } // // // 处理未认证请求 // @Bean // public AuthenticationEntryPoint ajaxAuthenticationEntryPoint() { // return (request, response, exception) -> { // if (request.getHeader("X-Requested-With") == null) { // response.sendRedirect("/login.html?error=true"); // } else { // response.setStatus(HttpStatus.UNAUTHORIZED.value()); // response.getWriter().write("{\"error\":\"Authentication failed\"}"); // } // }; // } // // // // // // @Bean // public JsonUsernamePasswordAuthenticationFilter jsonAuthFilter() throws Exception { // // JsonUsernamePasswordAuthenticationFilter filter = // new JsonUsernamePasswordAuthenticationFilter(); // filter.setAuthenticationManager(authenticationManagerBean()); // filter.setUsernameParameter("andy"); // 设置自定义参数名 // filter.setPasswordParameter("pass"); // filter.setFilterProcessesUrl("/users/login"); // filter.setAuthenticationSuccessHandler(ajaxAuthenticationSuccessHandler()); // filter.setAuthenticationFailureHandler(ajaxAuthenticationFailureHandler()); // // return filter; // } // // // /** // * 密码编码器(必须配置) // * 使用BCrypt强哈希算法加密 // */ // @Bean // public PasswordEncoder passwordEncoder() { // return new BCryptPasswordEncoder(); // } // // // @Bean // public AccessDeniedHandler accessDeniedHandler() { // System.out.println("0000"); // return (request, response, ex) -> { // if (!response.isCommitted()) { // response.sendRedirect("/error/403"); // } // }; // } // // //} // // // // // // //class JsonUsernamePasswordAuthenticationFilter extends UsernamePasswordAuthenticationFilter { // private final ObjectMapper objectMapper = new ObjectMapper(); // // @Override // public Authentication attemptAuthentication(HttpServletRequest request, // HttpServletResponse response) // throws AuthenticationException { // System.out.println("收到认证请求,路径:" + request.getRequestURI()); // System.out.println("请求方法:" + request.getMethod()); // System.out.println("Content-Type:" + request.getContentType()); // if (request.getContentType() != null && // request.getContentType().startsWith(MediaType.APPLICATION_JSON_VALUE)) { // // try (InputStream is = request.getInputStream()) { // Map<String, String> authMap = objectMapper.readValue(is, Map.class); // // String username = authMap.getOrDefault(getUsernameParameter(), ""); // String password = authMap.getOrDefault(getPasswordParameter(), ""); // // // 调试日志 // System.out.println("Authentication attempt with: " + username+'_'+ password); // // UsernamePasswordAuthenticationToken authRequest = // new UsernamePasswordAuthenticationToken(username, password); // // setDetails(request, authRequest); // return this.getAuthenticationManager().authenticate(authRequest); // } catch (IOException e) { // throw new AuthenticationServiceException("认证请求解析失败", e); // } // } // Authentication aut= super.attemptAuthentication(request, response); // System.out.println("结果:"+aut.isAuthenticated()); // // return aut; // } } package com.kucun.Config; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import com.kucun.Config.Role.RoleConverter; import com.kucun.Config.user.CustomUserDetails; import com.kucun.data.entity.User; import com.kucun.dataDo.UserRepository; /** * 获取数据 * @author Administrator * */ @Service public class CustomUserDetailsService/* implements UserDetailsService */{ // // @Autowired // private UserRepository userRepository; // // @Autowired // private RoleConverter roleConverter; // // public CustomUserDetailsService() { // // super(); // System.out.println("11111"); // } ///** // * 获取数据库中用户信息 // * @param andy 账号 // * // * @return // * // */ // @Override // public UserDetails loadUserByUsername(String andy) { // System.out.println(andy); // User user = userRepository.findByAndy(andy); // System.out.println(user); // return new CustomUserDetails(user, // roleConverter.convert(user.getRole()) // 关键转换点[^1] // ); // } } 不加安全类的情况下解决重定向问题 }
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06-01
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