配置Springmvc环境

首先创建maven工程，在pom.xml中导入相应的依赖，在main文件夹下创建webapp

 必须得有蓝点，如何让它有蓝点呢？

1.先创建webapp目录

2.打开项目结构，点击‘+’号，选择 web，点击修复

 

 选择From Modules，点击应用，再点击确认，成功创建web，有蓝点了。

在pom.xml中导入springmvc依赖

org.springframework
spring-webmvc
5.3.1



ch.qos.logback
logback-classic
1.2.3



javax.servlet
javax.servlet-api
3.1.0
provided



org.thymeleaf
thymeleaf-spring5
3.0.12.RELEASE

在WEB-INF文件下的xml文件进行配置，进行前端控制其Dispatcher的注册

配置如下所示

其中了过滤器主要负责编码格式设置，响应编码格式设置

后面的servlet值得注意的是

 标签中使用/和 public class User { private Integer id; private String username; private String password; private Integer age; private String sex; private String email; //这个无参构造可不能省 public User() { } public User(Integer id, String username, String password, Integer age, String sex, String email) { this.id = id; this.username = username; this.password = password; this.age = age; this.sex = sex; this.email = email; } @Override public String toString() { return "User{" + "id=" + id + ", username='" + username + ''' + ", password='" + password + ''' + ", age=" + age + ", sex='" + sex + ''' + ", email='" + email + ''' + '}'; } public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public Integer getAge() { return age; } public void setAge(Integer age) { this.age = age; } public String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; } public String getEmail() { return email; } public void setEmail(String email) { this.email = email; } }