<bean:cookie>

本文介绍了如何在JSP页面中使用bean标签添加Cookie,并通过Java代码获取Cookie的名称和值。演示了如何在页面上显示Cookie信息。

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在继承Action的excute方法中

		//bean:cookie begin
		Cookie cookieTemp = new Cookie("test_name", "test_value");
		cookieTemp.setComment("A test cookie");
		cookieTemp.setMaxAge(120);
		response.addCookie(cookieTemp);
		//bean:cookie end

 

index.jsp

<body>
  <!--
    id为后续标识,name对应java中的cookie name,当找不到name中的cookie,则添加
    name和value值,组成新的cookie。
    
    multiple
   -->
  <bean:cookie id="test1" name="test_name" value="11111" />
  <!-- 其它标签通过绑定到page作用域中的属性使用该值 -->
  这个cookie的名称是
  <bean:write name="test1" property="name" />,值为
  <bean:write name="test1" property="value" />。
  <hr/>
  <!-- JSP脚本通过scripting变量使用该值 -->
  <%
   String name = test1.getName();
   String value = test1.getValue();
   out.println("这个cookie的名称是" + name + ",值为" + value + "。<br/>");
  %>
  <hr/>
 </body>

 

package com.kucun.Config; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.security.config.annotation.web.builders.HttpSecurity; import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity; import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter; import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder; import org.springframework.security.crypto.password.PasswordEncoder; import org.springframework.security.web.SecurityFilterChain; // 2. 基础安全配置 @Configuration @EnableWebSecurity // 启用Web安全功能 public class SecurityConfig extends WebSecurityConfigurerAdapter{ /** * 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] */ @Bean public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception { http // 访问权限控制 .authorizeRequests(auth -> auth .antMatchers("/users/guanli/**").hasRole("ADMIN") // ADMIN角色可访问/admin路径 .antMatchers("/users/**").hasAnyRole("USER", "ADMIN") // 多角色选择 .antMatchers("/public/**").permitAll() // 开放访问 .anyRequest().authenticated() // 其他请求需认证 ) // 表单登录配置 .formLogin(form -> form .loginPage("/login") // 自定义登录页路径[^1] .loginProcessingUrl("/auth") // 认证处理端点 .defaultSuccessUrl("/dashboard") // 登录成功跳转 .permitAll() // 允许所有用户访问登录页 ) // 注销配置 .logout(logout -> logout .logoutUrl("/logout") // 注销请求路径 .logoutSuccessUrl("/login?logout") // 注销后跳转 .invalidateHttpSession(true) // 清除会话 .deleteCookies("JSESSIONID") // 删除Cookie ) // 异常处理 .exceptionHandling(ex -> ex .accessDeniedPage("/error/403") // 权限不足跳转页面[^3] ); return http.build(); } /** * 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(); } }<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> </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.springframework.boot</groupId> <artifactId>spring-boot-starter-security</artifactId> <exclusions> <exclusion> <groupId>com.google.protobuf</groupId> <artifactId>protobuf-java</artifactId> </exclusion> </exclusions> </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> org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.springframework.security.config.annotation.web.builders.HttpSecurity' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {} at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1717) ~[spring-beans-5.2.15.RELEASE.jar:5.2.15.RELEASE]
05-29
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