描述：项目中有时会用到window.location.href或者iframe来导出数据，需要将检索条件提交到后台，那么怎么办呢？思路：前端将检索条件form表单到数据先封装成json串后端直字符使用json工具包转对象代码：前端$("#btn_export").on('click', function () { var formData = {}; $.each($("#search_form").serializeArray(), function ()

异常信息：org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name '***Controller': Unsatisfied dependency expressed through field '***Service'; nested exception is org.springframework.beans.factory.BeanCreationException