案例springboot_freemarker
application.properties配置文件
###FreeMarker配置 spring.freemarker.template-loader-path=classpath:/templates/ spring.freemarker.cache=false spring.freemarker.charset=UTF-8 spring.freemarker.check-template-location=true spring.freemarker.content-type=text/html spring.freemarker.expose-request-attributes=false spring.freemarker.expose-session-attributes=false spring.freemarker.request-context-attribute=request
文件夹中创建HelloFreeMarker.ftl文件
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>SpringBoot整合FreeMarker</title> </head> <body> 欢迎：<#--${name}--> <#list stuList as stu> ${stu.stu_name} </#list> <#if 1==1> 呵呵，相等 </#if> </body> </html>
FreeController
@Controller @RequestMapping("/free") public class FreeController { @RequestMapping("/freeFirst") public String freeFirst(ModelMap map){ map.put("name","没穿裤子"); } @RequestMapping("/freeSecond") public String freeSecond(ModelMap map){ List<String> list=new ArrayList<>(); list.add("张三"); list.add("李四"); list.add("王五"); map.put("userList",list); return "helloFreeMarker"; } @RequestMapping("/freeThread") public String freeThread(ModelMap map){ List<Student> list=new ArrayList<>(); Student stu=new Student(); stu.setStu_id(1); stu.setStu_name("张三"); list.add(stu); map.put("stuList",list); return "helloFreeMarker"; } }
Student实体类
public class Student { private Integer stu_id; private String stu_name; public Integer getStu_id() { return stu_id; } public void setStu_id(Integer stu_id) { this.stu_id = stu_id; } public String getStu_name() { return stu_name; } public void setStu_name(String stu_name) { this.stu_name = stu_name; } }
案例springboot_hellow
FirstController
@RestController /** * 如果说在Controller类上加RestController注解代表该controller当中的所有方法都返回Json串 */ @RequestMapping("/first") public class FirstController { @RequestMapping("/firstRequest") public String firstRequest(){ int result=5/0; System.out.println("第一个请求到达Controller"); return "Hello SpringBoot"; } }
MyExceptionHandler
@ControllerAdvice public class MyExceptionHandler { //捕获运行时异常 @ExceptionHandler(RuntimeException.class) @ResponseBody public Map<String,Object> exceHandler(){ Map<String,Object> map=new HashMap<>(); map.put("error","500"); map.put("msg","您好，服务器暂时出现异常，请稍后重试"); return map; }
StartSpringBoot
@SpringBootApplication public class StartSpringBoot { public static void main(String[] args) { SpringApplication.run(StartSpringBoot.class,args); } }
index.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> 静态资源HTML页面 </body> </html>