我正在使用Sping Boot 编写Spring MVC应用程序。我试图显示一个文本和一个从Controller类填充的Department对象列表。当 Boot 应用程序运行时，值被填充到Controller的List变量中，页面被重定向到上述JSP。
问题是输出是这样的。Screenshot of the output
我希望这些值填充到指定的EL中。任何帮助都非常感谢。
以下是使用的代码。
部门.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>字符串
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);
}
}型
MVConfiguration.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();
}
}型
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;
}
}型
部门.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+"]";
}
}型
3条答案
按热度按时间lqfhib0f1#
您的项目中是否有JSP和JSTL jar？
如果使用maven，请添加
字符串
jljoyd4f2#
你可以尝试在
pom.xml中添加以下依赖项吗？字符串
yr9zkbsy3#
在我的例子中，我已经交换了webapp文件夹和WEB-INF文件夹的位置，因为jsp页面被移位了。因此无法在服务器上显示。
正确的顺序是- webapp->WEB-INF->views
检查IDE中的文件夹顺序。希望能帮上忙！