json转化对特殊字段的处理

//获取部门id
String departmentId = (String)this.getRequest().getParameter("departmentId");
//根据部门id查询用户list
List<Admin> adminList = adminService.findAllListBydepartment(departmentId);
try {
JsonConfig jsonConfig = new JsonConfig();  //建立配置文件
jsonConfig.setIgnoreDefaultExcludes(false);  //设置默认忽略
jsonConfig.setExcludes(new String[]{"roles"}); //此处是亮点，只要将所需忽略字段加到数组中即可

HttpServletResponse response = this.getResponse();
response.setContentType("text/plain;charset=UTF-8");
JSONArray array = JSONArray.fromObject(adminList, jsonConfig);
response.getWriter().print(array);
} catch (Exception e) {
e.printStackTrace();
}