springmvc与fastjson集成

1.导入maven依赖

1<dependency>
2	<groupId>com.alibaba</groupId>
3	<artifactId>fastjson</artifactId>
4	<version>1.2.20</version>
5</dependency>

2.springmvc.xml配置

1<mvc:annotation-driven>
2	<mvc:message-converters register-defaults="true">
3		<!-- 配置Fastjson支持 -->
4		<bean class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">
5			<property name="supportedMediaTypes">
6				<list>
7					<value>application/json;charset=UTF-8</value>
8					<value>text/html;charset=UTF-8</value>
9				</list>
10			</property>
11			<property name="features">
12				<list>
13					<value>WriteMapNullValue</value>
14					<value>QuoteFieldNames</value>
15				</list>
16			</property>
17		</bean>
18	</mvc:message-converters>
19</mvc:annotation-driven>

3.controller加上@responseBody即可

1​
2package cn.gson.spring.mvc3;
3
4import java.net.URL;
5import java.nio.charset.Charset;
6
7import org.apache.commons.io.IOUtils;
8import org.springframework.stereotype.Controller;
9import org.springframework.web.bind.annotation.RequestMapping;
10import org.springframework.web.bind.annotation.ResponseBody;
11
12import com.alibaba.fastjson.JSONObject;
13
14@Controller
15@RequestMapping("/json")
16public class JsonController {
17
18	@RequestMapping
19	public String index() {
20		return "info";
21	}
22
23	@RequestMapping("/load")
24	@ResponseBody
25	public User loadInfo() {
26		User u = new User();
27		u.setUserName("小贺");
28		u.setPassword("123456");
29		return u;
30	}
31
32}
33
34​