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SpringBoot
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Thymeleaf
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Mybatis-Plus
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MySQL
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PageHelper
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Lombok
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Redis（后期页面优化使用）
server:
port: 8080
spring:
datasource:
driver-class-name: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://localhost:3306/supplier?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8
username: root
password: root
# thymeleaf 配置
thymeleaf:
# 关闭缓存
cache: false
prefix: classpath:/templates/
mybatis-plus:
mapper-locations: classpath*:/mapper/**/*.xml@ControllerAdvice
publicclass ExceptionHandler {
privatefinal org.slf4j.Logger logger = LoggerFactory.getLogger(this.getClass());
@org.springframework.web.bind.annotation.ExceptionHandler(Exception.class)
public ModelAndView exception(HttpServletRequest request, Exception e ) throws Exception {
logger.error("Request URL:{},Exception:{}",request.getRequestURL(),e);
if (AnnotationUtils.findAnnotation(e.getClass(), ResponseStatus.class )!= null){
throw e;
}
ModelAndView mv = new ModelAndView();
mv.addObject("url",request.getRequestURL());
mv.addObject("exception",e);
mv.setViewName("error/error");
return mv;
}
}public class LoginInterceptor extends HandlerInterceptorAdapter {
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
if (request.getSession().getAttribute("user") == null){
response.sendRedirect("/api");
return false;
}
return true;
}
}@Configuration
public class WebConfig extends WebMvcConfigurerAdapter {
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(new LoginInterceptor())
.addPathPatterns("/api/**")
.excludePathPatterns("/api","/api/doLogin");
}
}//跳转文件上传的页面
@RequestMapping("/file-upload")
public String userList(){
return "file-upload";
}@RequestMapping("/doAddForUser")
publicString doAdd(User user, @RequestParam("file") MultipartFile files, HttpServletRequest request) throws IOException {
//String path = null;
if (files != null && !files.isEmpty()){
String name = UUID.randomUUID().toString().replace("-","");
//获取文件的扩展名
String ext = FilenameUtils.getExtension(files.getOriginalFilename());
//设置文件上传的路径
String url =request.getSession().getServletContext().getRealPath("/upload/");
File file = new File(url);
if (!file.exists()){
file.mkdir();
}
//测试路径
System.out.println(request.getServletPath()+ "/upload");
System.out.println(request.getContextPath() + "/upload/");
//以绝对路径保存重命名后的文件
files.transferTo(new File(url+"/"+name+"."+ext));
user.setAvatar(request.getContextPath() + "/upload/"+name+"."+ext);
}
user.setId(UUID.randomUUID().toString());
String salt = PasswordUtils.getSalt();
String password = user.getPassword();
String encode = PasswordUtils.encode(password, salt);
user.setSalt(salt) ;
user.setPassword(encode);
user.setCreateTime(newDate());
userService.save(user);
return"redirect:/api/users";
}
private void commons(Object obj, @RequestParam("file") CommonsMultipartFile[] files, HttpServletRequest request) throws IOException {
//String path = null;
for (int i = 0; i < files.length; i++) {
if (files[i] != null && !files[i].isEmpty()){
String name = UUID.randomUUID().toString().replace("-","");
//获取文件的扩展名
String ext = FilenameUtils.getExtension(files[i].getOriginalFilename());
//设置文件上传的路径
String url =request.getSession().getServletContext().getRealPath("/upload/");
File file = new File(url);
if (!file.exists()){
file.mkdir();
}
//测试路径
System.out.println(request.getServletPath()+ "/upload");
System.out.println(request.getContextPath() + "/upload/");
//以绝对路径保存重命名后的文件
files[i].transferTo(new File(url+"/"+name+"."+ext));
if (i == 0){
obj.setUrl1(request.getContextPath() + "/upload/"+name+"."+ext);
}
if (i == 1){
obj.setUrl2(request.getContextPath() + "/upload/"+name+"."+ext);
}
if (i == 2){
obj.setUrl3(request.getContextPath() + "/upload/"+name+"."+ext);
}
if (i == 3){
obj.setUrl4(request.getContextPath() + "/upload/"+name+"."+ext);
}
if (i == 4){
obj.setUrl5(request.getContextPath() + "/upload/"+name+"."+ext);
}
}
}
}-
项目优化
<!--Redis-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<!--commons-pools2 对象池依赖-->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-pool2</artifactId>
</dependency>## Redis配置
redis:
# 服务器地址
host: localhost
# 端口
port:6379
# 数据库
database:0
# 超时时间
connect-timeout:10000ms
lettuce:
pool:
# 最大连接数
max-active:8
# 最大连接阻塞等待时间 默认 -1
max-wait:10000ms
# 最大空闲时间 默认8
max-idle:200
# 最小空闲连接 默认8
min-idle: 5@Configuration
publicclass RedisConfig {
@Bean
public RedisTemplate<String,Object> redisTemplate(RedisConnectionFactory redisConnectionFactory){
RedisTemplate<String,Object> redisTemplate = new RedisTemplate<>();
//key序列化
redisTemplate.setKeySerializer(new StringRedisSerializer());
//value序列化
redisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer());
//hash类型key的序列化
redisTemplate.setHashKeySerializer(new StringRedisSerializer());
//hash类型value的序列化
redisTemplate.setHashValueSerializer(new GenericJackson2JsonRedisSerializer());
redisTemplate.setConnectionFactory(redisConnectionFactory);
return redisTemplate;
}
}@Autowired
private NewsService newsService;
@Autowired
private RedisTemplate redisTemplate;
@Autowired
private ThymeleafViewResolver viewResolver;
@RequestMapping(value ="/news",produces ="text/html;charset=utf-8")
@ResponseBody
publicString roles(Model model,@RequestParam(value ="pageNo",defaultValue ="1")Integer pageNo
,@RequestParam(value ="pageSize",defaultValue ="10")Integer pageSize
, HttpServletRequest request, HttpServletResponse response){
//Redis中获取页面，如果不为空，则直接返回页面
ValueOperations valueOperations = redisTemplate.opsForValue();
String html = (String) valueOperations.get("news-list");
if (!StringUtils.isEmpty(html)){
return html;
}
PageHelper.startPage(pageNo,pageSize);
List<News> list = newsService.list();
PageInfo<News> pageInfo =new PageInfo<>(list);
model.addAttribute("news",list);
model.addAttribute("pageInfo",pageInfo);
//如果为空，手动渲染，存入Redis中并返回
WebContext context =new WebContext(request, response, request.getServletContext(), request.getLocale(), model.asMap());
html = viewResolver.getTemplateEngine().process("news-list", context);
if (!StringUtils.isEmpty(html)){
//给缓存设置过期时间
valueOperations.set("news-list",html,60, TimeUnit.SECONDS);
}
return html;
}
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