Springboot项目的简单
接着我们的项目来:
首先是个pox:
pom.xml:`
4.0.0
<groupId>com.github.carter659</groupId>
<artifactId>spring13</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.3.RELEASE</version>
</parent>
<name>spring13</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
其次是app.java
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
/**
*
*/
@SpringBootApplication
public class App {
public static void main(String[] args) {
SpringApplication.run(App.class, args);
}
}
具体实现`
import java.util.HashMap;
import java.util.Map;
import javax.servlet.http.HttpSession;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.SessionAttribute;
/**
*
*
*/
@Controller
public class MainController {
@GetMapping("/")
public String index(@SessionAttribute(WebSecurityConfig.SESSION_KEY) String account, Model model) {
model.addAttribute("name", account);
return "index";
}
@GetMapping("/login")
public String login() {
return "login";
}
@PostMapping("/loginPost")
public @ResponseBody Map<String, Object> loginPost(String account, String password, HttpSession session) {
Map<String, Object> map = new HashMap<>();
if (!"123456".equals(password)) {
map.put("success", false);
map.put("message", "密码错误");
return map;
}
// 设置session
session.setAttribute(WebSecurityConfig.SESSION_KEY, account);
map.put("success", true);
map.put("message", "登录成功");
return map;
}
@GetMapping("/logout")
public String logout(HttpSession session) {
// 移除session
session.removeAttribute(WebSecurityConfig.SESSION_KEY);
return "redirect:/login";
}
讲解MainController:
这里的四个方法分别是:登录后的页面、登录页面、登录ajax后台方法和注销。
“loginPost”方法判断当密码为“123456”时则设置session
“index”方法用来显示session
“logout”方法用来移除session
新建“WebSecurityConfig”类文件
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
/**
*
*
*/
@Configuration
public class WebSecurityConfig extends WebMvcConfigurerAdapter {
/**
* 登录session key
*/
public final static String SESSION_KEY = "user";
@Bean
public SecurityInterceptor getSecurityInterceptor() {
return new SecurityInterceptor();
}
public void addInterceptors(InterceptorRegistry registry) {
InterceptorRegistration addInterceptor = registry.addInterceptor(getSecurityInterceptor());
// 排除配置
addInterceptor.excludePathPatterns("/error");
addInterceptor.excludePathPatterns("/login**");
// 拦截配置
addInterceptor.addPathPatterns("/**");
}
private class SecurityInterceptor extends HandlerInterceptorAdapter {
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
throws Exception {
HttpSession session = request.getSession();
if (session.getAttribute(SESSION_KEY) != null)
return true;
// 跳转登录
String url = "/login";
response.sendRedirect(url);
return false;
}
}
}
页面
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>spring boot——简单登录认证</title>
</head>
<body>
<h1>spring boot——简单登录认证</h1>
<h3 th:text="'登录用户:' + ${name}"></h3>
<a href="/logout">注销</a>
<br />
</body>
</html>
```<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>spring boot——简单登录认证</title>
</head>
<body>
<h1>spring boot——简单登录认证</h1>
<h3 th:text="'登录用户:' + ${name}"></h3>
<a href="/logout">注销</a>
<br />
</body>
</html>
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