Question

我在Spring @controller中写了这个请求的映射，它接受请求和参数“tipoLista，numPagina”

    @RequestMapping(value = "/admin/evento/approvatutti", params = "{tipoLista,numPagina}", method = RequestMethod.GET)
    public ModelAndView approvaTuttiGliEventi(@RequestParam("tipoLista") String tipoLista, @RequestParam("numPagina") String numPagina, ModelAndView model) {
        ....bla bla ...bla...
    }

当我致电localhost:8084/context/admin/evento/approvatutti?tipoLista=valueOfParameter&numPagina=0

时

我收到错误代码400，请求错误。我已启用TRACE级别日志记录，但收到此消息：

Resolving exception from handler [null]: org.springframework.web.bind.UnsatisfiedServletRequestParameterException: Parameter conditions "{tipoLista,numPagina}" not met for actual request parameters: tipoLista={approvabili}, numPagina={0}

DEBUG - nseStatusExceptionResolver - Resolving exception from handler [null]: org.springframework.web.bind.UnsatisfiedServletRequestParameterException: Parameter conditions "{tipoLista,numPagina}" not met for actual request parameters: tipoLista={approvabili}, numPagina={0}

DEBUG - ltHandlerExceptionResolver - Resolving exception from handler [null]: org.springframework.web.bind.UnsatisfiedServletRequestParameterException: Parameter conditions "{tipoLista,numPagina}" not met for actual request parameters: tipoLista={approvabili}, numPagina={0}

Answer 1

The params attribute of @RequestMapping expects a String[] with

任何环境的格式相同：一系列“myParam = myValue”样式表达式

因此数组中的每个String的格式为

paramName=paramValue

但您可以省略=paramValue。但是您提供了一个String值，如

{tipoLista,numPagina}

这意味着请求查询字符串必须看起来像

?{tipoLista,numPagina}=someValue

这显然没有意义，Spring抱怨

Resolving exception from handler [null]: org.springframework.web.bind.UnsatisfiedServletRequestParameterException: Parameter conditions "{tipoLista,numPagina}" not met for actual request parameters: tipoLista={approvabili}, numPagina={0}

相反，您可以将其更改为

params = {"tipoLista","numPagina"}

但这不是必需的。一起摆脱params属性。您的方法中已经有@RequestParam个参数，这些参数是必需的。

不满意的ServletRequestParameterException spring控制器没有映射请求，错误400

1 个答案: