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When working with templates, you typically use the variable expression ${.} to display variables, and you can also use the selected object expression * {.}, also known as an asterisk expression.

If the object is selected first in the template, you need to use an asterisk expression. Thymeleaf's built-in object # object effect is equivalent to an asterisk expression.

Development environment: IntelliJ IDEA 2019.2.2

Spring Boot version: 2.1.8

Create a new Spring Boot project named demo.

1 、 pom.xml

Join Thymeleaf dependency

Org.springframework.boot spring-boot-starter-thymeleaf

2 、 src/main/java/com/example/demo/User.java

Package com.example.demo;public class User {Integer id; String name; public User (Integer id, String name) {this.id = id; this.name = name;} public Integer getId () {return id;} public void setId (Integer id) {this.id = id;} public String getName () {return name } public void setName (String name) {this.name = name;}}

3 、 src/main/java/com/example/demo/TestController.java

Package com.example.demo;import org.springframework.stereotype.Controller;import org.springframework.ui.Model;import org.springframework.web.bind.annotation.RequestMapping;import java.util.ArrayList;import java.util.List;@Controllerpublic class TestController {@ RequestMapping ("/") public String test (Model model) {List users = queryUsers (); model.addAttribute ("user", users.get (0)); model.addAttribute ("users", users); return "test" } private List queryUsers () {List users = new ArrayList (); users.add (new User (1, "Zhang San"); users.add (new User (2, "Li Si"); users.add (new User (3, Wang Wu)); return users;}}

4 、 src/main/resources/templates/test.html

Title table {border-collapse:collapse;} td {border: 1px solid # C1DAD7 } use variable expressions use asterisk expressions: use asterisk expressions: use # object objects to use asterisk expressions in the body of a loop

Browser access: http://localhost:8080

The following screenshot is shown:

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