依據開發規范，前期我們配合前臺開發，需要根據開發時的測試用例寫入供前臺測試的對接代碼。 # 根據url新建觸發器 http://127.0.0.1:8080/javaee/Klass.json -> com.mengyunzhi.javaee.action.KlassAction execute() ``` package com.mengyunzhi.javaee.action; public class KlassAction extends Action { /** * */ private static final long serialVersionUID = 1L; private String name=""; private int page = 1; private int pageSize = 5; private int totalCount = 0; public int getTotalCount() { return totalCount; } public void setName(String name) { this.name = name; } public void setPage(int page) { this.page = page; } public void setPageSize(int pageSize) { this.pageSize = pageSize; } public String execute() { return SUCCESS; } } ``` 測試：  ## 新建Klass實體 package com.mengyunzhi.javaee.entity; public class Klass { private Long id = 1L; private String name = "一一班"; private Teacher teacher = new Teacher(1L, "張三", "zhangsan", "zhangsan@yunzhiclub.com", true, "123456"); public Long getId() { return id; } public void setId(Long id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public Teacher getTeacher() { return teacher; } public void setTeacher(Teacher teacher) { this.teacher = teacher; } } 單元測試: ``` // 所有的單元測試均位于test文件夾中 package com.mengyunzhi.javaee.entityTest; import org.junit.Test; import com.mengyunzhi.javaee.entity.Klass; public class KlassTest { @Test public void Init() { Klass klass = new Klass(); System.out.println(klass.toString()); } } ``` 測試結果： ``` Klass [id=1, name=一一班, teacher=Teacher [teacherId=1, name=張三, username=zhangsan, email=zhangsan@yunzhiclub.com, sex=true, password=123456]] ``` ## 完善觸發器 根據測試用例，我們完善觸發器 ``` package com.mengyunzhi.javaee.action; import java.util.ArrayList; import java.util.List; import com.mengyunzhi.javaee.entity.Klass; public class KlassAction extends Action { /** * */ private static final long serialVersionUID = 1L; private String name=""; private int page = 1; private int pageSize = 5; private int totalCount = 0; private List<Klass> klasses = new ArrayList<Klass>(); public List<Klass> getKlasses() { return klasses; } public int getTotalCount() { return totalCount; } public void setName(String name) { this.name = name; } public void setPage(int page) { this.page = page; } public int getPage() { return this.page; } public void setPageSize(int pageSize) { this.pageSize = pageSize; } public String execute() { int i; // 初始化變量，用于計數 // 測試用例一 if (this.name.equals("") && this.page == 1 && this.pageSize == 3) { this.totalCount = 7; // 設置總條數 for (i = 0; i < 3; i++) { //循環加入3條信息 this.klasses.add(new Klass()); } // 測試用例2 } else if (this.name.equals("一") && this.page == 2 && this.pageSize == 2) { this.totalCount = 4; for (i = 0; i < 2; i++) { Klass klass = new Klass(); klass.setName("一班"); this.klasses.add(klass); } } return SUCCESS; } } ``` 測試： 測試用例一：  ``` var jsonData = JSON.parse(responseBody); tests["code 200"] = jsonData.code === 200; tests["total count is 7"] = jsonData.totalCount === 7; tests["kalss length is 3"] = jsonData.klasses.length === 3; ``` 測試用例二：  ``` var jsonData = JSON.parse(responseBody); tests["code 200"] = jsonData.code === 200; tests["total count is 4"] = jsonData.totalCount === 4; tests["kalss length is 2"] = jsonData.klasses.length === 2; tests["page is 2"] = jsonData.page === 2; ``` > git checkout -f step12.1.3