Errore Eclipse: Unable to compile class for JSP - JasperException Spring MVC

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Iscritto da: mag, 2018

Messaggi:: 60

Errore Eclipse: Unable to compile class for JSP - JasperException Spring MVC

15 feb 2021, 13:30

Ciao ragazzi, ho un problema con un errore in Eclipse. L'errore è il seguente: org.apache.jasper.JasperException: Unable to compile class for JSP.

Il codice è il seguente:

pom.xml

<dependencies>
   <!--Spring framework related jars-->
   <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>3.2.10.RELEASE</version>
   </dependency>
   <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
   </dependency>
   <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>servlet-api</artifactId>
      <version>2.5</version>
      <scope>provided</scope>
   </dependency>
</dependencies>

PhoneService.java

package com.kswaughs.web.service;

import java.util.ArrayList;
import java.util.List;

import org.springframework.stereotype.Service;

import com.kswaughs.web.beans.Phone;

@Service
public class PhoneService {
    
    public List<Phone> getPhoneslist() {
        
        List<Phone> phonesList = new ArrayList<Phone>();
        
        phonesList.add(buildPhone("1", "Samsung Galaxy Y"));
        phonesList.add(buildPhone("2", "Nokia Lumia"));
        phonesList.add(buildPhone("3", "Moto G"));
        phonesList.add(buildPhone("4", "Lenovo A 7000 white"));
        phonesList.add(buildPhone("5", "Sony XPeria"));
        
        return phonesList;
    }
    
    private Phone buildPhone(String id, String name) {
        
        Phone phone = new Phone(id, name);
        return phone;
    }
    
}

Phone.java

package com.kswaughs.web.beans;

public class Phone {
    
    private String id;
    
    private String name;
    
    public Phone() {
        
    }
    
    public Phone(String id, String name) {
        this.id = id;
        this.name = name;
    }
    
    public String getId() {
        return id;
    }

    public String getName() {
        return name;
    }

    public void setId(String id) {
        this.id = id;
    }

    public void setName(String name) {
        this.name = name;
    }

}

PhoneController.java

package com.kswaughs.web.controller;

import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.support.PagedListHolder;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;

import com.kswaughs.web.beans.Phone;
import com.kswaughs.web.service.PhoneService;

@Controller
@RequestMapping(value = "/phones")
public class PhoneController {
    
    @Autowired
    PhoneService phoneSvc;
    
    @RequestMapping(value = {"/all/{type}","/all"}, method = RequestMethod.GET)
    public ModelAndView all(
            @PathVariable Map<String, String> pathVariablesMap, 
            HttpServletRequest req) {
        
        PagedListHolder<Phone> productList = null;
        
        String type = pathVariablesMap.get("type");
        
        if(null == type) {
            // First Request, Return first set of list
            List<Phone> phonesList = phoneSvc.getPhoneslist();
            
            productList = new PagedListHolder<Phone>();
            productList.setSource(phonesList);
            productList.setPageSize(2);
            
            req.getSession().setAttribute("phonesList",  productList);
        
            printPageDetails(productList);
            
        } else if("next".equals(type)) {
            // Return next set of list
            productList = (PagedListHolder<Phone>) req.getSession()
                                .getAttribute("phonesList");
            
            productList.nextPage();
            
            printPageDetails(productList);
            
        } else if("prev".equals(type)) {
            // Return previous set of list
            productList = (PagedListHolder<Phone>) req.getSession()
                                .getAttribute("phonesList");
            
            productList.previousPage();
            
            printPageDetails(productList);
            
        } else {
            // Return specific index set of list
            System.out.println("type:" + type);
            
            productList = (PagedListHolder<Phone>) req.getSession()
                                .getAttribute("phonesList");
            
            int pageNum = Integer.parseInt(type);
            
            productList.setPage(pageNum);
            
            printPageDetails(productList);
        }
                    
        ModelAndView mv = new ModelAndView("index");
        
        return  mv;
    }

    private void printPageDetails(PagedListHolder productList) {
        
        System.out.println("curent page - productList.getPage() :"
                + productList.getPage());
        
        System.out.println("Total Num of pages - productList.getPageCount :"
                + productList.getPageCount());
        
        System.out.println("is First page - productList.isFirstPage :"
                + productList.isFirstPage());
        
        System.out.println("is Last page - productList.isLastPage :"
                + productList.isLastPage());
    }
}

SpringWebConfig

package com.kswaughs.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
import org.springframework.web.servlet.view.JstlView;

@EnableWebMvc 
@Configuration
@ComponentScan({ "com.kswaughs.web" })
public class SpringWebConfig extends WebMvcConfigurerAdapter {
    
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
    }
    
    @Bean
    public ViewResolver jspViewResolver() {
        InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
        viewResolver.setViewClass(JstlView.class);
        viewResolver.setPrefix("/jsps/");
        viewResolver.setSuffix(".jsp");
        return viewResolver;
    }        
}

SpringWebInitializer

package com.kswaughs.servlet;

import org.springframework.web.servlet.support.
    AbstractAnnotationConfigDispatcherServletInitializer;

import com.kswaughs.config.SpringWebConfig;

public class SpringWebInitializer extends
        AbstractAnnotationConfigDispatcherServletInitializer {

    @Override
    protected Class[] getServletConfigClasses() {
        return new Class[] { SpringWebConfig.class };
    }

    @Override
    protected String[] getServletMappings() {
        return new String[] { "/" };
    }

    @Override
    protected Class[] getRootConfigClasses() {
        return new Class[] {};
    }
    
}

index.jsp

<%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
<html>
    <head>
    </head>
    <body>
    <div>
        <p>Welcome to Phones Store</p>
        <p>List of the Phones in our store.</p>
    </div>
    <div>
        <c:set var="pageListHolder" value="${phonesList}" scope="session" />
        <table cellspacing="0">
            <thead><tr><th>ID</th><th>Name</th></tr></thead>
            <tbody>
            <c:forEach var="ph" items="${pageListHolder.pageList}">
                <tr><td>${ph.id}</td><td>${ph.name}</td></tr>
            </c:forEach>
            </tbody>
        </table>
    </div>
    <div>
    <span style="float:left;">
    <c:choose>
        <c:when test="${pageListHolder.firstPage}">Prev</c:when>
        <c:otherwise><a href="${pageurl}/prev">Prev</a></c:otherwise>
    </c:choose>
    </span>
    <span>
    <c:forEach begin="0" end="${pageListHolder.pageCount-1}" varStatus="loop">
    &nbsp;&nbsp;
    <c:choose>
        <c:when test="${loop.index == pageListHolder.page}">${loop.index+1}</c:when>
        <c:otherwise><a href="${pageurl}/${loop.index}">${loop.index+1}</a></c:otherwise>
    </c:choose>
    &nbsp;&nbsp;
    </c:forEach>
    </span>
    <span>
    <c:choose>
        <c:when test="${pageListHolder.lastPage}">Next</c:when>
        <c:otherwise><a href="${pageurl}/next">Next</a></c:otherwise>
    </c:choose>
    </span>
    </div>
    </body>
</html>

Errore Eclipse: Unable to compile class for JSP - JasperException Spring MVC

Errore Eclipse: Unable to compile class for JSP - JasperException Spring MVC

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Re: Errore Eclipse: Unable to compile class for JSP - JasperException Spring MVC

Re: Errore Eclipse: Unable to compile class for JSP - JasperException Spring MVC

Re: Errore Eclipse: Unable to compile class for JSP - JasperException Spring MVC

Re: Errore Eclipse: Unable to compile class for JSP - JasperException Spring MVC

Re: Errore Eclipse: Unable to compile class for JSP - JasperException Spring MVC

Re: Errore Eclipse: Unable to compile class for JSP - JasperException Spring MVC

Re: Errore Eclipse: Unable to compile class for JSP - JasperException Spring MVC

Re: Errore Eclipse: Unable to compile class for JSP - JasperException Spring MVC