Spring自动注入construtor

1.application.xml配置文件

<!-- 配置dao层bean -->
		<bean id="edi" class="dao.impl.EmpDaoImpl">
			<property name="sessionFactory" ref="sessionFactory"></property>
		</bean>
<bean id="edi2" class="dao.impl.EmpDaoImpl2" autowire-candidate="false">
			<property name="sessionFactory" ref="sessionFactory"></property>
		</bean>

		<bean id="empBiz" class="biz.impl.EmpBizImpl" autowire="constructor">
			<!-- <property name="edi" ref="edi"></property> -->
		</bean>
		
	
		<bean id="ea" class="action.EmpAction" scope="prototype">
			<property name="empBiz" ref="empBiz"></property>
		</bean>

2.EmpBiz接口类

package biz;

import java.util.List;

import entity.Emp;

public interface EmpBiz {
	public List<Emp> findAllEmp();
	public List<Emp> findEmpByCondition(Emp e);
	public List<Emp> findEmpByNameParam(Emp e);
	public List<Emp> findEmpByExemple(Emp e);
	public Emp findEmpById(int id);
	public int addEmp(Emp e);
	public void modifyEmp(Emp e);
	public List<Emp> findEmpbyPage(int pageNo,int pageSize);
	public void updateBatchEmpSal(double sal);
}

3.EmpBizImpl实现类

package biz.impl;

import java.util.List;

import biz.EmpBiz;
import dao.EmpDao;
import entity.Emp;

public class EmpBizImpl implements EmpBiz {
	private EmpDao edi;
	public EmpDao getEdi() {
		return edi;
	}
	public void setEdi(EmpDao edi) {
		this.edi = edi;
	}
	public EmpBizImpl(EmpDao edi) {
		super();
		this.edi = edi;
	}
	@Override
	public List<Emp> findAllEmp() {
		return edi.findAllEmp();
	}
	@Override
	public List<Emp> findEmpByCondition(Emp e) {
		// TODO Auto-generated method stub
		return edi.findEmpByCondition(e);
	}
	@Override
	public List<Emp> findEmpByNameParam(Emp e) {
		// TODO Auto-generated method stub
		return null;
	}
	@Override
	public List<Emp> findEmpByExemple(Emp e) {
		// TODO Auto-generated method stub
		return null;
	}
	@Override
	public Emp findEmpById(int id) {
		// TODO Auto-generated method stub
		return null;
	}
	@Override
	public int addEmp(Emp e) {
		return edi.addEmp(e);
	}
	@Override
	public void modifyEmp(Emp e) {
		edi.modify(e);
	}
	@Override
	public List<Emp> findEmpbyPage(int pageNo, int pageSize) {
		// TODO Auto-generated method stub
		return edi.findEmpByPage(pageNo, pageSize);
	}
	@Override
	public void updateBatchEmpSal(double sal) {
		edi.updateBatchEmpSal(sal);
	}
}

最后

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