returnresult; } 解决办法就是加@RequestParam,原因不知道,能跑就行了。 @RequestMapping(value = "/searchPhoneInfos2", method = RequestMethod.GET) publicCommonResultsearchPhoneInfos2(intpage,intlimit, String phoneName,@RequestParam(value = "brand", required = false)List<String> brand, String system)...
Failed to instantiate [java.util.List]: Specified class is an interface;错误信息意思:参数错误,参数封装出了问题。原因:前端给后台传递了一个list对象,本来以为直接用list 可以接收,但是运行方法报错,参数错误。查询错误问题,发现是前端传递的对象,后台没有set,get的实体接收。
将对象数组用{“list”:JSON.stringify(array)}绑定到后台,后台用@RequestBody String configs接收,接收的是json数据,然后用jackson把configs转为数组List configList。 var configList= JSON.stringify([ {configName: “sgs-demo”, configId: “1”}, {configName: “sgs-demo-1”, configId: “2”} ]);...
When an interface is in down state, its indicator is off and it cannot send or receive packets. To check the status of a specific interface, run thedisplay interfacecommand. In the command output, if thecurrent statefield displaysDOWN, the interface is in down state. ...
A standard IP access list is applied to an Ethernet interface of a router. What does this standard access list filter on? 〔 〕A. The source and destination addressesB. The destination port numberC. The destination addressD. The source addressE. All of the above 相关知识点: 试题来源: ...
After an interface on a device receives a new LSP, the device floods the LSP through other local interfaces. On a network with high connectivity and multiple P2P links, such processing causes repeated LSP flooding, wasting bandwidth. To prevent this problem, you can add some interfac...
Dify is an open-source LLM app development platform. Dify's intuitive interface combines AI workflow, RAG pipeline, agent capabilities, model management, observability features and more, letting you quickly go from prototype to production. - langgenius/d
This section describes what is an interface - An interface is a like a 'half' abstract class that only declares some abstract methods and has no properties. Classes that implement an interface must implement all abstract methods declared in the interface
In its most common form, an interface is a group of related methods with empty bodies. A bicycle's behavior, if specified as an interface, might appear as follows: interface Bicycle { // wheel revolutions per minute void changeCadence(int newValue); void changeGear(int newValue); void spe...
1英语翻译An operating system[操作系统] is a program,which acts as an interface[接口] between a user of a computer and the computer hardware.The purpose[目的] of an operating system is to provide[提供] an environment[环境] in which a user may execute[执行] programs.In general,however,there...