springMVC json格式转换demo

package org.fkit.controller; import javax.servlet.http.HttpServletResponse; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.codehaus.jackson.map.ObjectMapper; import org.fkit.domain.Book; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RequestMapping; /** * @Description: * <br>网站：<a href="http://www.fkit.org">疯狂Java</a> * @author 肖文吉 36750064@qq.com * @version V1.0 */ @Controller @RequestMapping("/json") public class BookController { private static final Log logger = LogFactory.getLog(BookController.class); // @RequestBody根据json数据，转换成对应的Object @RequestMapping(value="/testRequestBody") public void setJson(@RequestBody Book book, HttpServletResponse response) throws Exception{ // ObjectMapper类是Jackson库的主要类。它提供一些功能将Java对象转换成对应的JSON格式的数据 ObjectMapper mapper = new ObjectMapper(); // 将book对象转换成json输出 logger.info(mapper.writeValueAsString(book) ); book.setAuthor("肖文吉"); book.setName("我爱我家"); response.setContentType("text/html;charset=UTF-8"); // 将book对象转换成json写出到客户端 response.getWriter().println(mapper.writeValueAsString(book)); } }