Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException

一

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'java.util.ResourceBundle' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {} 解決：

@Component
public class TaskProperties {
	public TaskProperties(ResourceBundle resourceBundle) {

TaskProperties是component，構造方法入參有ResourceBundle，但ResourceBundle不是component致使。 把TaskProperties設置爲不是@Component。

二

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: 
No qualifying bean of type 'com..transfer.ftp2.SftpConnectCommand' available: 
expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: 
{@org.springframework.beans.factory.annotation.Autowired(required=true)}

解決：

@Autowired
SftpConnectCommand sftpConnectCommand;

@Component
public interface Command {

解決：接口爲@Component不行，須要實現類爲@Compoenent。 增長：

@Component
public class SftpConnectCommand implements Command {

三

public interface TaskCommandInvoker {

@Component
public class DefaultTaskCommandInvoker implements TaskCommandInvoker {

@Autowired
TaskCommandInvoker taskCommandInvoker;

interface不須要@Component，也能夠注入。