SpringBoot之WEB（跳转到一个页面或者获取一个Json数据）
SpringBoot——02WEB
模块结构：

1.返回json两种方式
@[email protected]

	@Controller
	@RequestMapping("/json")
	public class JsonController {
	    @RequestMapping("/str")
	    @ResponseBody
	    public String json1(){
	        return "json001";
	    }
	    @RequestMapping("/obj")
	    @ResponseBody
	    public Person json2(){
	        return new Person(1L,"json2",new Date());
	    }
	    @RequestMapping("/list")
	    @ResponseBody
	    public List<Person> json3(){
	        return Arrays.asList(new Person(1L,"json2",new Date()),new Person(2L,"json2",new Date()),new Person(3L,"json2",new Date()));
	    }
	}

@[email protected][email protected]

	@RestController
	@RequestMapping("/json2")
	public class JsonController2 {
	    @RequestMapping("/str")
	    public String json1(){
	        return "json001";
	    }
	    @RequestMapping("/obj")
	    public Person json2(){
	        return new Person(1L,"json2",new Date());
	    }
	    @RequestMapping("/list")
	    public List<Person> json3(){
	        return Arrays.asList(new Person(1L,"json2",new Date()),new Person(2L,"json2",new Date()),new Person(3L,"json2",new Date()));
	    }
	}

2.页面跳转

官方推荐使用模板引擎,不推荐jsp。这里我用的FreeeMarker

导包

org.springframework.boot spring-boot-starter-freemarker

配置：application.properties

FreeeMarker 模板引擎配置

spring.freemarker.allow-request-override=false
spring.freemarker.cache=false
spring.freemarker.check-template-location=true
spring.freemarker.charset=UTF-8
spring.freemarker.content-type=text/html
spring.freemarker.expose-request-attributes=false
spring.freemarker.expose-session-attributes=false
spring.freemarker.expose-spring-macro-helpers=false
#spring.freemarker.prefix=
#spring.freemarker.request-context-attribute=
#spring.freemarker.settings.*=
#spring.freemarker.suffix=.ftl
#spring.freemarker.template-loader-path=classpath:/templates/ #comma-separated list
#spring.freemarker.view-names= # whitelist of view names that can be resolved

Controller

@Controller
public class IndexController {
    @RequestMapping("/index")
    public String json1(Model model){
        model.addAttribute("msg","springboot");
        return "index";
    }
    @RequestMapping("/index2")
    @ResponseBody
    public String json2(Model model){
        model.addAttribute("msg","springboot");
        return "index";
    }
}

FreeeMarker模板

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org"
             xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity3">
<head>
    <title>Hello World!</title>
</head>
<body>
<h1><span style="color: red">${msg}</span> </h1>
</body>
</html>

springboot----web结束

SpringBoot——02WEB

FreeeMarker 模板引擎配置

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