thymeleaf 局部变量

桃扇骨 2022-11-25 11:46 110阅读 0赞

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### thymeleaf 局部变量 ###

**局部变量只在局部片段内有效，可使用 th:with 自定义一个局部变量**

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**示例**

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**pojo 层**

**Person**

@Data
    public class Person {
    
        private Integer id;
        private String name;
        private Integer age;
    }

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**controller 层**

**HelloController**

@RestController
    public class HelloController {
    
        @RequestMapping("/hello")
        public ModelAndView hello(ModelAndView mv){
            Person person=new Person();
            person.setId(1);
            person.setName("瓜田李下");
            person.setAge(20);
    
            mv.addObject("person",person);
            mv.setViewName("test");
    
            return mv;
        }
    }

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**前端页面**

**test.html**

<!DOCTYPE html>
    <html lang="en" xmlns="http://www.w3.org/1999/xhtml"
          xmlns:th="http://www.thymeleaf.org" xmlns:sec="https://www.thymeleaf.org/thymeleaf-extras-springsecurity4">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
    </head>
    <body>
    <div th:align="center" style="color: coral" th:object="${person}">
        <strong>
            <span th:text="*{id}"></span> ==>
            <span th:text="*{name}"></span> ==>
            <span th:text="*{age}"></span>
        </strong>
    </div><br>
    
    <div th:align="center" style="color: purple" th:with="per=${person}">
        <strong>
            <span th:text="${per.id}"></span> ==>
            <span th:text="${per.name}"></span> ==>
            <span th:text="${per.age}"></span>
        </strong>
    </div>
    </body>
    </html>

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**使用测试**

**localhost:8080/hello**

![20200808172150564.png][]

[20200808172150564.png]: /images/20221124/19cc9a4ee6144470999f3b3936343e3a.png