我們首先使用astah將類圖自動轉化為JAVA代碼，并添加SET/GET方法。  初始代碼如下： ``` package com.mengyunzhi.javaee.action.klass; import com.mengyunzhi.javaee.action.Action; public class UpdateAction extends Action { private static final long serialVersionUID = 1L; private Long klassId; private String name; private Long teacherId; public Long getKlassId() { return klassId; } public void setKlassId(Long klassId) { this.klassId = klassId; } public String getName() { return name; } public void setName(String name) { this.name = name; } public Long getTeacherId() { return teacherId; } public void setTeacherId(Long teacherId) { this.teacherId = teacherId; } public String execute() { return SUCCESS; } } ``` 然后根據時序圖，進行數據轉發的代碼開發.  ``` public String execute() { KlassServer.updateKlassByIdNameTeacherId(klassId, name, teacherId); return SUCCESS; } ``` # 測試 ## URL: http://127.0.0.1:8080/javaee/klass.Update.json ## 請求格式 json ## HTTP請求方式 POST ## 請求數據 { "klassId":1, "name":"HelloWorld", "teacherId":2 } ## 返回數據 { "code":200, }