SmartGWT的的TreeGrid数据源通过嵌套数组JSON

Question

充满我试图做同样品说，但使用的不是XML JSON

Smart GWT Tree

当我使用XML，它完美的作品，但它只有当我使用JSON时加载第一个孩子。

这里是XML：

<response> 
<errors /> 
<data> 
    <project> 
     <id>3</id> 
     <name>Checho Project</name> 
     <sprints> 
      <project> 
       <id>4</id> 
       <name>Backlog</name> 
      </project> 
     </sprints> 
    </project> 
</data> 
</response> 

这里是JSON：

{"response": 
    {"errors":"","data": 
    {"project":[{"id":1,"name":"Bee Project","sprints": 
               {"project":[{"id":3,"name":"sprint3"},{"id":4,"name":"sprint2"},{"id":2,"name":"sprint1"}]}}, 
        {"id":5,"name":"Checho Project","sprints": 
                {"project":{"id":6,"name":"Backlog"}}}] 
    } 
    } 
} 

---

private ProjectDS(String id) { 

    setID(id); 
    setRecordXPath("/response/data/*"); 
    // setRecordXPath("/Employees/*"); 
    // DataSourceTextField nameField = new DataSourceTextField("Name", "Name", 128); 
    // 
    // DataSourceIntegerField employeeIdField = new DataSourceIntegerField("EmployeeId", "Employee ID"); 
    // employeeIdField.setPrimaryKey(true); 
    // employeeIdField.setRequired(true); 

    DataSourceTextField idField = new DataSourceTextField("id", "Id", 128, true); 
    idField.setHidden(true); 
    idField.setPrimaryKey(true); 

    DataSourceTextField itemNameField = new DataSourceTextField("name", "Item", 128, true); 

    DataSourceField reportsToField = new DataSourceField(); 
    reportsToField.setName("sprints"); 
    reportsToField.setChildrenProperty(true); 

    setFields(idField, itemNameField, reportsToField); 

    setDataFormat(DSDataFormat.JSON); 
    setDataURL("bee_gui/sc/ds.xml"); 
    setClientOnly(true); 

} 

这儿还有没有人处理这个？

谢谢！

Answer 1

在使用这种方式的JSON对象，那么你会得到解决

{"List": 
    {"employee": 
     [{"EmployeeId":4,"ReportsTo":1,"Name":"Seg 1", "Job":"Chief Operating Officer","Salary":260000},{"EmployeeId":192,"ReportsTo":4,"Name":"Leg 1","Job":"Mgr Cap Rptg Dist","Salary":460000},{"EmployeeId":5,"ReportsTo":1,"Name":"Seg 2", "Job":"Chief Operating Officer","Salary":260000},{"EmployeeId":193,"ReportsTo":5,"Name":"Leg 2","Job":"Mgr Cap Rptg Dist","Salary":460000}] 
    } 
} 

Answer 2

我用“的Javascript过于类型”我的JSON解析

看看这里，如果你想知道更多：http://googlewebtoolkit.blogspot.com/2008/08/getting-to-really-know-gwt-part-2.html

他们是很容易的工作真的很好！

PS：Sry基因，我不能帮你...例如