Json数据的处理
1.引入依赖(依赖的版本相适应)
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<!--spring-webMvc-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.3.14.RELEASE</version>
</dependency>
<!-- spring-web -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.3.14.RELEASE</version>
</dependency>
<!-- javax.servlet-api -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.7.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.7.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.7.0</version>
</dependency>
</dependencies>
2.配置文件中的内容
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
https://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!--配置的jackson文件-->
<mvc:annotation-driven>
<mvc:message-converters>
<bean class="org.springframework.http.converter.StringHttpMessageConverter"/>
<bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"/>
</mvc:message-converters>
</mvc:annotation-driven>
<mvc:default-servlet-handler/>
<context:component-scan base-package="org.example.springmvc.controller"/>
<!--配置视图解析器 默认的试图解析器-->
<bean id="defaultViewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
<property name="contentType" value="text/html"/>
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>
</beans>
3.关于@Responsebody和@Requestbody的用法
@Controller
public class BodyController {
@RequestMapping("qwer")
//代表响应数据为jasion数据
@ResponseBody
public Reigster reigster(){
Reigster reigster=new Reigster();
reigster.setId(10);
reigster.setName("admin");
reigster.setPwd("123456");
return reigster;
}
@RequestMapping("qwer02")
public @ResponseBody Reigster reigster02(){
Reigster reigster=new Reigster();
reigster.setId(10);
reigster.setName("admin");
reigster.setPwd("123456");
return reigster;
}
@RequestMapping("qwer03")
@ResponseBody
public List<Reigster> reigster03(){
List<Reigster> list=new ArrayList();
Reigster reigster1=new Reigster();
reigster1.setId(10);
reigster1.setName("admin");
reigster1.setPwd("123456");
Reigster reigster2=new Reigster();
reigster2.setId(11);
reigster2.setName("admin");
reigster2.setPwd("123");
list.add(reigster1);
list.add(reigster2);
return list;
}
//返回的是一个对象,前端进行请求
@RequestMapping("qqq")
@ResponseBody
public Reigster reigster04(@RequestBody Reigster reigster){
return reigster;
}
}