org.springframework.http.converter.HttpMessageNotReadableException错误原因及解决办法_required request body is missing: public java.lang

报错原因：@RequestBody只支持POST请求，GET请求不能使用@RequestBody，修改GET请求为POST即可，如果需要使用GET请求，可以使用@RequestParam和@PathVariable

报错异常为：
org.springframework.http.converter.HttpMessageNotReadableException: Required request body is missing: public java.lang.Object
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原来写法如下：

    @RequestMapping(value = "/appInfoList",method = RequestMethod.GET)
    @ApiOperation(value = "查询app版本信息列表")
    public Object appInfoList(@RequestBody @ApiParam("JSON参数") String id) {
        Object object = appInfoService.findAppInfoList(appInfo);
        return toResult(object);
    }
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修改后为：

    @RequestMapping(value = "/appInfoList",method = RequestMethod.POST)
    @ApiOperation(value = "查询信息列表")
    public Object appInfoList(@RequestBody @ApiParam("JSON参数") String id) {
        Object object = appInfoService.findAppInfoList(appInfo);
        return toResult(object);
    }
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