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博客系统实战——SprintBoot 集成Thymeleaf 实现用户增删查改(含源码)

我的笔记 我的笔记 发表于2018-07-23 21:26:06 浏览1540 评论0

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近来在学习SprintBoot +Thymeleaf +Maven搭建自己的博客系统,故在学习过程中在此记录一下,也希望能给广大正在学习SprintBoot和Thymeleaf的朋友们一个参考。

以下是目录结构:

效果:

 

 1、创建一个Springboot 工程,具体步骤这个网上例子一大把,选择WEB,thymeleaf框架就行了,以下是pom.xml的内容

  1.  
    <?xml version="1.0" encoding="UTF-8"?>
    <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>com.spring.blog</groupId>
        <artifactId>myblog</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <packaging>jar</packaging>
     
        <name>myblog</name>
        <description>myblog project for Spring Boot</description>
     
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.0.3.RELEASE</version>
            <relativePath/> <!-- lookup parent from repository -->
        </parent>
     
        <properties>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
            <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>
        </dependencies>
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
     
        </build>
    </project>

     

2、创建用户类(避免太长省去了get set方法,可下载完整项目)

package com.spring.boot.blog.blog.domain;
 
/**
 * Created by 龙烨 on 2018/7/16.
 */
public class User {
    private Long id; // 用户的唯一标识
    private String name;
    private String email;
 
    public User(){//无参数
 
    }
    public User(Long id,String name,String email){
        this.id=id;
        this.name=name;
        this.email=email;
    }
    
}

 

3、创建接口及实现方法,应为这里没有连接数据库,故使用内存

package com.spring.boot.blog.blog.repository;
 
import com.spring.boot.blog.blog.domain.User;
import org.springframework.stereotype.Service;
 
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.atomic.AtomicLong;
 
/**
 * Created by 龙烨 on 2018/7/16.
 */
@Service
public class UserRepositoryImpl implements UserRepository {
 
    private static AtomicLong counter=new AtomicLong();
    private final ConcurrentMap<Long,User> userMap=new ConcurrentHashMap<>();
 
    @Override
    public User saveOrUpateUser(User user) {
        Long id=user.getId();
        if(id==null){//新建
            id=counter.incrementAndGet();
            user.setId(id);
        }
        this.userMap.put(id,user);
        return user;
    }
 
    @Override
    public void deleteUser(Long id) {
        this.userMap.remove(id);
 
    }
 
    @Override
    public User getUserById(Long id) {
 
        return this.userMap.get(id);
    }
 
    @Override
    public List<User> listUser() {
        return new ArrayList<User>(this.userMap.values());
    }
}

  

4 、创建控制类(避免太长,部分内容,下载源码可查看完整)

@RestController
@RequestMapping("/users")
public class UserController {
 
    @Autowired
    private UserRepository userRepository;
    /**
     * 查询所以用户
     * @param model
     * @return
     */
    @GetMapping
    public ModelAndView list(Model model){
        model.addAttribute("userList",userRepository.listUser());
        model.addAttribute("title","用户管理");
        return new ModelAndView("users/list","userModel",model);
    }
 
    /**
     * 查询单个用户
     * @param model
     * @return
     */
    @GetMapping("{id}")
    public ModelAndView view(@PathVariable("id") Long id, Model model){
        User user=userRepository.getUserById(id);
        model.addAttribute("user",user);
        model.addAttribute("title","查看用户");
        return new ModelAndView("users/view","userModel",model);
    }
 
    /**
     * 创建表达页面
     * @param model
     * @return
     */
    @GetMapping("/form")
    public ModelAndView createForm( Model model){
        model.addAttribute("user",new User());
        model.addAttribute("title","创建用户");
        return new ModelAndView("users/form","userModel",model);
    }
 
    @PostMapping
    public ModelAndView saveOrUpdateUser(User user){
        user=userRepository.saveOrUpateUser(user);
        return new ModelAndView("redirect:/users");
    }

 

 5、resources 下创建文件:

application.properties 增加以下内容:

# THYMELEAF
spring.thymeleaf.encoding=UTF-8
# 热部署静态文件
spring.thymeleaf.cache=false
# 使用HTML5标准
spring.thymeleaf.mode=LEGACYHTML5
spring.thymeleaf.prefix=classpath:/templates/

  

 

源码下载:源码

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