GET http://localhost:8080/webapp-demo/hello
Cookie: Sai=dgut
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GET http://localhost:8080/webapp-demo/json

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POST http://localhost:8080/webapp-demo/json
Content-Type: application/json

{"姓名":"黎志雄","工号":"2003066","注册日期":"15-03-2019","薪水":"1000.0","身份":"老师","邮件":"lizhx@dgut.edu.cn","部门":"网络空间安全 学院"}

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