Java 春豆走错路
我得到这个错误,我不知道为什么。我相信这就是道路。试图改变它几次,但没有成功Java 春豆走错路,java,spring,jsp,spring-mvc,Java,Spring,Jsp,Spring Mvc,我得到这个错误,我不知道为什么。我相信这就是道路。试图改变它几次,但没有成功 *************************** APPLICATION FAILED TO START *************************** Description: Field loginDelegate in com.codeEvaluator.controller.LoginController required a bean of type 'com.codeEvaluator.d
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APPLICATION FAILED TO START
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Description:
Field loginDelegate in com.codeEvaluator.controller.LoginController required a bean of type 'com.codeEvaluator.delegate.LoginDelegate' that could not be found.
Action:
Consider defining a bean of type 'com.codeEvaluator.delegate.LoginDelegate' in your configuration.
Process finished with exit code 1
这是我的sprinbenconfiguration.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<bean id="loginDelegate" class="com.codeEvaluator.delegate.LoginDelegate">
<property name="userService" ref="userService"></property>
</bean>
<bean id="userService" class="com.codeEvaluator.service.impl.UserServiceImpl">
<property name="userDao" ref="userDao"></property>
</bean>
<bean name="userDao" class="com.codeEvaluator.dao.impl.UserDaoImpl">
<property name="dataSource" ref="dataSource"></property>
</bean>
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/codeevaluator" />
<property name="username" value="root" />
<property name="password" value="" />
</bean>
这是一个项目视图
login.jsp位于de jsp包中。更改为
<context:component-scan base-package="com.jcg, com.codeEvaluator" />
你的输入应该是这样的
<import resource="classpath:springBeanConfiguration.xml"/>
或
在“sprinBeanConfiguration.xml”文件中添加那些注释
和
以启用注释“@Autowired”共享您的web.xml,以便我们可以检查应用程序上下文配置。
package com.codeEvaluator.controller;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
import com.codeEvaluator.delegate.LoginDelegate;
import com.codeEvaluator.viewBean.LoginBean;
@Controller
public class LoginController
{
@Autowired
private LoginDelegate loginDelegate;
@RequestMapping(value="/login",method=RequestMethod.GET)
public ModelAndView displayLogin(HttpServletRequest request, HttpServletResponse response, LoginBean loginBean)
{
ModelAndView model = new ModelAndView("login");
//LoginBean loginBean = new LoginBean();
model.addObject("loginBean", loginBean);
return model;
}
@RequestMapping(value="/login",method=RequestMethod.POST)
public ModelAndView executeLogin(HttpServletRequest request, HttpServletResponse response, @ModelAttribute("loginBean")LoginBean loginBean)
{
ModelAndView model= null;
try
{
boolean isValidUser = loginDelegate.isValidUser(loginBean.getUsername(), loginBean.getPassword());
if(isValidUser)
{
System.out.println("User Login Successful");
request.setAttribute("loggedInUser", loginBean.getUsername());
model = new ModelAndView("welcome");
}
else
{
model = new ModelAndView("login");
request.setAttribute("message", "Invalid credentials!!");
}
}
catch(Exception e)
{
e.printStackTrace();
}
return model;
}
}
<context:component-scan base-package="com.jcg, com.codeEvaluator" />
<import resource="classpath:springBeanConfiguration.xml"/>
<import resource="classpath*:springBeanConfiguration.xml"/>