SpringMVC使用Map或MultiValueMap接收前端提交的Form-Data或Query-String
目录
SpringMVC使用Map或MultiValueMap接收前端提交的Form Data或Query String
在SpringMVC中，可以使用Map或MultiValueMap接收前端提交的Form Data或Query String，省去定义一大堆不同的VO类。直接上代码：
测试中需要依赖到的包：
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.1.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.1.2.RELEASE</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.2.3</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.2.3</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.2.3</version>
</dependency>测试代码：
/**
* 测试用Map接收参数
* @author Xu
*
*/
@RestController
@RequestMapping(value = "/mapParameter/")
public class MapParameter {
/**
* 用Map接收前端提交的Form Data或Query String，如果有相同的参数名，只接收第一个
* @author XuJijun
* @param params
* @return
*/
@RequestMapping(value = "map")
public Map<String, Object> test1(@RequestParam Map<String, Object> params) {
Map<String, Object> resultMap = new HashMap<String, Object>();
resultMap = params;
return resultMap;
}
/**
* 用MultiValueMap接收前端提交的Form Data或Query String，可以接收相同的参数名的值到同一个list中
* @author XuJijun
* @param params
* @return
*/
@RequestMapping(value = "multiValueMap")
public Map<String, List<Object>> test2(@RequestParam MultiValueMap<String, Object> params) {
Map<String, List<Object>> resultMap = new HashMap<>();
resultMap = params;
return resultMap;
}
/**
* 用Map接收前端提交的json格式的Request Payload，如果有相同的参数名，只接收最后一个
* @author XuJijun
* @param params
* @return
*/
@RequestMapping(value = "jsonParams")
public Map<String, Object> test3(@RequestBody Map<String, Object> params) {
Map<String, Object> resultMap = new HashMap<String, Object>();
resultMap = params;
return resultMap;
}
}测试结果：
