【发布时间】：2017-07-22 14:06:28
【问题描述】：
我正在使用 Spring Boot 编写 Spring MVC 应用程序。我正在尝试显示从 Controller 类填充的文本和 Department 对象列表。当启动应用程序运行时，这些值被填充到控制器的 List 变量中，并且页面被重定向到提到的 JSP。
问题是输出是这样的。 Screenshot of the output
我希望将值填充到指定的 EL 中。很感谢任何形式的帮助。
以下是使用的代码。
Department.jsp
<!DOCTYPE html>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html lang="en">
<head>
</head>
<body>
<div>
<div>
<h1>${message}</h1>
<ul>
<c:forEach var="listValue" items="${DepartmentList}" >
<li>${listValue.deptName}</li>
</c:forEach>
</ul>
</div>
</div>
</body>
</html>
SpringMVCApplication.java
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.support.SpringBootServletInitializer;
@SpringBootApplication
public class SpringMVCApplication extends SpringBootServletInitializer{
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
return builder.sources(SpringMVCApplication.class);
}
public static void main(String[] args) {
SpringApplication.run(SpringMVCApplication.class, args);
}
}
MVCConfiguration.java
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ViewResolverRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
@Configuration
@EnableWebMvc
@ComponentScan(value = "com.practices.spring.mvc")
public class MVCConfiguration extends WebMvcConfigurerAdapter {
@Override
public void configureViewResolvers(ViewResolverRegistry registry) {
InternalResourceViewResolver resolver = new InternalResourceViewResolver();
resolver.setPrefix("/WEB-INF/view/");
resolver.setSuffix(".jsp");
resolver.setContentType("application/html");
registry.viewResolver(resolver);
}
public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
configurer.enable();
}
}
DepartmentController.java
import java.util.ArrayList;
import java.util.List;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
import com.practices.spring.mvc.valueobject.Department;
@Controller
public class DepartmentController {
@RequestMapping(method = RequestMethod.GET, value = "/depts")
public ModelAndView getAllDepartments(){
ModelAndView mv = new ModelAndView("Department");
List<Department> deptList = populateDepartment();
mv.addObject("DepartmentList", deptList);
mv.addObject("message", "Hi");
return mv;
}
private List<Department> populateDepartment(){
List<Department> deptListTemp = new ArrayList<>();
Department dept1 = new Department("1", "Finance");
Department dept2 = new Department("2", "CRO");
deptListTemp.add(dept1);
deptListTemp.add(dept2);
return deptListTemp;
}
}
Department.java
package com.practices.spring.mvc.valueobject;
public class Department {
private String deptId;
private String deptName;
public Department(){}
public Department (String deptIdentification, String deptartmentName){
deptId = deptIdentification;
deptName = deptartmentName;
}
public String getDeptId() {
return deptId;
}
public void setDeptId(String deptId) {
this.deptId = deptId;
}
public String getDeptName() {
return deptName;
}
public void setDeptName(String deptName) {
this.deptName = deptName;
}
public String toString(){
return "[deptId : "+deptId +" ! deptName : "+deptName+"]";
}
}
【问题讨论】：
标签： java spring jsp spring-mvc spring-boot