package com.atguigu.my.controller;

import java.util.Collection;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import com.atguigu.my.bean.Employee;
import com.atguigu.my.dao.EmployeeDao;

@Controller
public class JsonController {
	@Autowired
	private EmployeeDao employeeDao;
	@RequestMapping(value = "/testJson")
	@ResponseBody
	public Collection<Employee> getAll() {
		Collection<Employee> emps = employeeDao.getAll();
;		return emps;
	}
}
 

只是寫一個<a href = "testJson">測試json</a>

然後再springmvc.xml中開啟註解驅動<mvc:annotation-driven/>

然後需要印如jackson的三個jar包，jackson是阿里巴巴產品，能夠自動將java