SpringBoot creates the JSP login page function instance code
- 2020-06-15 09:09:39
- OfStack
Add JSP configuration
pom.xml adds jsp parsing engine
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<scope>provided</scope>
</dependency>
2. Create folder config under project com.xxxx and add spring-ES17en configuration JspConfig.java under com.xxx.config
public class JspConfig extends WebMvcConfigurerAdapter{
@Bean
public InternalResourceViewResolver internalResourceViewResolver () {
InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
viewResolver.setPrefix("/WEB-INF/views/");
viewResolver.setSuffix(".jsp");
return viewResolver;
}
@Override
public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
configurer.enable();
}
}
3. Create/src/main/webapp/WEB - INF/views
The directory structure
src --- main --- java
| | --- basic
| | --- config
| | --- controller |
| | --- service
| | --- persistent
|
| --- resources
|
| --- webapp --- WEB-INF - views
login.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<h1>Login Page</h1>
<!-- The form submits target links and methods post-->
<form action="/account/valid" method="post">
<input type="text" name="name" placeholder=" The user name ">
<input type="password" name="password" placeholder=" password ">
<input type="submit" value=" The login ">
</form>
</html>
AccountController.java
@Controller
@RequestMapping("/account") //RequestMapping You can map classes and methods
public class AccountController {
@Autowired // Automatically encapsulates annotations, leaving them out set , get Method and instantiation declaration
AccountService accountService;
@RequestMapping(value="/login")
public String Login() {
return "login"; // No use ResponseBody To return to string , the jump is jsp Page: "login" + ".jsp" The suffix
}
@RequestMapping("/valid")
@ResponseBody
public String Valid(HttpServletRequest request) {
Account account = new Account();
account.setName(request.getParameter("name"));
account.setPassword(request.getParameter("password"));
if(accountService.valid(account)) {
return "Login Success!";
}
else {
return "Login Failed!";
}
}
}
AccountService.java
@Service
public class AccountService {
public boolean valid (Account account) {
if("admin".equals(account.getName()) && "123456".equals(account.getPassword())) {
return true;
}
return false;
}
}