我正在使用Spring,Hibernate,Struts和Maven创建Web应用程序。
运行mvn clean install
命令时出现以下错误:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.project.action.PasswordHintActionTest': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.project.action.PasswordHintAction com.project.action.PasswordHintActionTest.action; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.project.action.PasswordHintAction] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
以下是具有Autowired依赖关系的类:
import com.opensymphony.xwork2.Action;
import org.project.model.User;
import org.proejct.service.UserManager;
import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.subethamail.wiser.Wiser;
import static org.junit.Assert.*;
public class PasswordHintActionTest extends BaseActionTestCase {
@Autowired
private PasswordHintAction action;
@Autowired
private UserManager userManager;
@Test
public void testExecute() throws Exception {
// start SMTP Server
Wiser wiser = new Wiser();
wiser.setPort(getSmtpPort());
wiser.start();
action.setUsername("user");
assertEquals("success", action.execute());
assertFalse(action.hasActionErrors());
// verify an account information e-mail was sent
wiser.stop();
assertTrue(wiser.getMessages().size() == 1);
// verify that success messages are in the request
assertNotNull(action.getSession().getAttribute("messages"));
}
}
我的applicationcontext.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
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.xsd"
default-lazy-init="true">
<!-- Activates scanning of @Autowired -->
<context:annotation-config/>
<!-- Activates scanning of @Repository and @Service -->
<context:component-scan base-package="com.project"/>
<!-- Compass Search Section -->
<!-- Compass Bean, automatically scanning for searchable classes within the model -->
<!-- Hooks into Spring transaction management and stores the index on the file system -->
<bean id="compass" class="org.compass.spring.LocalCompassBean">
<property name="mappingScan" value="org.project"/>
<property name="postProcessor" ref="compassPostProcessor"/>
<property name="transactionManager" ref="transactionManager" />
<property name="settings">
<map>
<entry key="compass.engine.connection" value="target/test-index" />
</map>
</property>
</bean>
我已添加到我的上下文配置中以扫描自动连接的依赖项。但我不确定为什么它仍然会给出这个例外。
我尝试按照以下方式添加它,但我仍然得到相同的异常
<context:component-scan base-package="com.project.*"/>
更新:
以下是密码提示操作
import org.project.model.User;
import com.project.webapp.util.RequestUtil;
import org.springframework.mail.MailException;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import java.util.ArrayList;
import java.util.List;
public class PasswordHintAction extends BaseAction {
private static final long serialVersionUID = -4037514607101222025L;
private String username;
/**
* @param username The username to set.
*/
public void setUsername(String username) {
this.username = username;
}
/**
* Execute sending the password hint via e-mail.
*
* @return success if username works, input if not
*/
public String execute() {
List<Object> args = new ArrayList<Object>();
// ensure that the username has been sent
if (username == null) {
log.warn("Username not specified, notifying user that it's a required field.");
args.add(getText("user.username"));
addActionError(getText("errors.requiredField", args));
return INPUT;
}
if (log.isDebugEnabled()) {
log.debug("Processing Password Hint...");
}
// look up the user's information
try {
User user = userManager.getUserByUsername(username);
String hint = user.getPasswordHint();
if (hint == null || hint.trim().equals("")) {
log.warn("User '" + username + "' found, but no password hint exists.");
addActionError(getText("login.passwordHint.missing"));
return INPUT;
}
StringBuffer msg = new StringBuffer();
msg.append("Your password hint is: ").append(hint);
msg.append("\n\nLogin at: ").append(RequestUtil.getAppURL(getRequest()));
mailMessage.setTo(user.getEmail());
String subject = '[' + getText("webapp.name") + "] " + getText("user.passwordHint");
mailMessage.setSubject(subject);
mailMessage.setText(msg.toString());
mailEngine.send(mailMessage);
args.add(username);
args.add(user.getEmail());
saveMessage(getText("login.passwordHint.sent", args));
} catch (UsernameNotFoundException e) {
log.warn(e.getMessage());
args.add(username);
addActionError(getText("login.passwordHint.error", args));
getSession().setAttribute("errors", getActionErrors());
return INPUT;
} catch (MailException me) {
addActionError(me.getCause().getLocalizedMessage());
getSession().setAttribute("errors", getActionErrors());
return INPUT;
}
return SUCCESS;
}
}
更新2:
的applicationContext-struts.xml中:
<bean id="passwordHintAction" class="com.project.action.PasswordHintAction" scope="prototype">
<property name="userManager" ref="userManager"/>
<property name="mailEngine" ref="mailEngine"/>
<property name="mailMessage" ref="mailMessage"/>
</bean>
答案 0 :(得分:23)
如果使用构造型注释注释com.project.action.PasswordHintAction
,则使用下面给出的组件扫描
<context:component-scan base-package="com.project.action"/>
修改强>
我看到您的问题,在PasswordHintActionTest
您正在自动装配PasswordHintAction
。但是您没有为PasswordHintAction
创建自动装配的bean配置。添加一个构造型注释(@Component, @Service, @Controller
)到PasswordHintAction
,如
@Component
public class PasswordHintAction extends BaseAction {
private static final long serialVersionUID = -4037514607101222025L;
private String username;
或在applicationcontext.xml
中创建xml配置,如
<bean id="passwordHintAction" class="com.project.action.PasswordHintAction" />
答案 1 :(得分:3)
您需要提供autowire的候选人。这意味着必须知道PasswordHint的一个实例,它可以猜测它必须引用它。
请提供PasswordHint的班主任和/或该班级的spring bean定义以获得进一步的帮助。
尝试更改
的名称PasswordHintAction action;
到
PasswordHintAction passwordHintAction;
以便它匹配bean定义。
答案 2 :(得分:0)
在 bean.xml 文件或任何其他配置文件中添加 bean 声明。它将解决错误
<bean class="com.demo.dao.RailwayDao"></bean>
<bean class="com.demo.service.RailwayService"></bean>
<bean class="com.demo.model.RailwayReservation"></bean>