@PathVariable和@RequestParam的区别

爱被打了一巴掌 2022-05-28 00:12 199阅读 0赞

**@PathVariable和@RequestParam的区别**

顾名思义， @PathVariable和@RequestParam，分别是从路径里面去获取变量，也就是把路径当做变量，后者是从请求里面获取参数。

**1.@RequestParam ：是从请求里面获取参数**

请求的url： [http://localhost:8080/jfly.openapi/pad/sulfuCheckInfoByMachineNo/v1?machineNo=ECCM001][http_localhost_8080_jfly.openapi_pad_sulfuCheckInfoByMachineNo_v1_machineNo_ECCM001]

其中"required = **false" **是设置请求参数为非必须

@RequestMapping (value = "/sulfuCheckInfoByMachineNo/v1" , method = RequestMethod. ***GET*** )

@ResponseBody

**public** String I\_MES\_PAD\_16( @RequestParam (value = "machineNo" , required = **false** ) String machineNo ) \{

**if** ( machineNo != **null** && ! "" .equals( machineNo )) \{

IPadService service = Application. *getClassBean* (IPadService. **class** );

List<MesSulfuCheckInfo> infoList = service .findSulfuCheckInfoByMachineNo( machineNo );

**if** ( infoList != **null** && ! infoList .isEmpty()) \{

jsonString = JSONUtil. *getJSONString* ( **new** JSONData( infoList ));

\} **else** \{

jsonString = JSONUtil. *getErrorJSONString* ( "未查询到该机台号硫化信息" );

**return** jsonString ;

\} **else** \{

jsonString = JSONUtil. *getErrorJSONString* ( "机台编号不能为空" );

**return** jsonString ;

**2.@PathVariable ：从路径里面去获取变量**

请求的url： [http://localhost:8080/jfly.openapi/pad/sulfuCheckInfoByMachineNo1/v1/ECCM001][http_localhost_8080_jfly.openapi_pad_sulfuCheckInfoByMachineNo1_v1_ECCM001]

@RequestMapping (value = "/sulfuCheckInfoByMachineNo1/v1/\{machineNo\}" , method = RequestMethod. ***GET*** )

@ResponseBody

**public** String I\_MES\_PAD\_18( @PathVariable ( "machineNo" ) String machineNo ) \{

**if** ( machineNo != **null** && ! "" .equals( machineNo )) \{

IPadService service = Application. *getClassBean* (IPadService. **class** );

List<MesSulfuCheckInfo> infoList = service .findSulfuCheckInfoByMachineNo( machineNo );

**if** ( infoList != **null** && ! infoList .isEmpty()) \{

jsonString = JSONUtil. *getJSONString* ( **new** JSONData( infoList ));

\} **else** \{

jsonString = JSONUtil. *getErrorJSONString* ( "未查询到该机台号硫化信息" );

**return** jsonString ;

\} **else** \{

jsonString = JSONUtil. *getErrorJSONString* ( "机台编号不能为空" );

**return** jsonString ;

[http_localhost_8080_jfly.openapi_pad_sulfuCheckInfoByMachineNo_v1_machineNo_ECCM001]: http://localhost:8080/jfly.openapi/pad/sulfuCheckInfoByMachineNo/v1?machineNo=ECCM001
[http_localhost_8080_jfly.openapi_pad_sulfuCheckInfoByMachineNo1_v1_ECCM001]: http://localhost:8080/jfly.openapi/pad/sulfuCheckInfoByMachineNo1/v1/ECCM001