Question

在下面的代码中，我正在调整列表并正确查看，但在更新时我只面对第一个字段rsoCode连接，例如如果我的rsoCode NH43 那么它将作为 NH43，NH43 来到控制器。在更新表单中，它正确显示，但在

时

虽然调试我观察到getRsoCode（）在进入更新屏幕时调用了两次（我们可以在其中更改值）。

这是JSP代码

<%@ taglib uri="http://www.springframework.org/tags" prefix="spring"%>
<%@ taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<form:form action="" method="POST" commandName="updateRso">
<table>
    <tr>
        <td style="font-weight: bold; font-variant: small-caps;">RSO Code:</td>
        <td><form:input path="rsoCode" value="${updateRso.rsoCode}" disabled="disabled"/></td></tr>

    <tr><td style="font-weight: bold; font-variant: small-caps;">RSO Description:</td>
        <td><form:input path="rsoDescriprion" value="${updateRso.rsoDescriprion}"/></td>
    </tr>
    <tr>
        <td style="font-weight: bold; font-variant: small-caps;">Region Code:</td>
        <td><form:input path="regionCode" value="${updateRso.regionCode}"/></td></tr>
        <tr><td style="font-weight: bold; font-variant: small-caps;">Region Description:</td>
        <td><form:input path="regiondescription" value="${updateRso.regiondescription}"/></td>
    </tr>
    <tr>
        <td colspan="10" align="center">&nbsp;&nbsp;&nbsp;<input type="submit" value="Submit"/> </td>
    </tr>
    </table>
    </form:form>

控制器代码

@Controller
public class ListRsoController {

    private static final Logger logger = LoggerFactory.getLogger(ListRsoController.class);

    @ModelAttribute("updateRso")
    public ListRso getListRso()
    {

        ListRso updateRso = new ListRso();

        return updateRso;
    }

    @RequestMapping(value="listrso")
    public String listAllRso(ModelMap model) throws Exception{

        ListRsoDao listDao = new ListRsoDao();

        model.addAttribute("rsos", listDao.getList());

        return "listrso/view";
    }

    @RequestMapping(value="getRsoDetails")
    public String getRso(@RequestParam("rsoCode")String rsoCode, ModelMap model,HttpServletRequest req) throws Exception{

        ListRsoDao lstdto = new ListRsoDao();

        Object obj = lstdto.getRsoCode(rsoCode);

        model.addAttribute("savedClass", obj);

        return "listrso/viewdetails";
    }
    @RequestMapping(value="updateRsoDetails", method=RequestMethod.GET)
    public String updateRso(@RequestParam("rsoCode")String rsoCode, ModelMap model,HttpServletRequest req) throws Exception{

        ListRsoDao lstdto = new ListRsoDao();

        Object obj = lstdto.getRsoCode(rsoCode);

        model.addAttribute("updateRso", obj);

        return "listrso/updatedetails";

    }

    @RequestMapping(value="deleteRsoDetails")
    public String deleteRso(@RequestParam("rsoCode")ListRso rsoCode, ModelMap model,HttpServletRequest req) throws Exception{

        ListRsoDao lstdto = new ListRsoDao();

        lstdto.deleteRso(rsoCode);

        //model.addAttribute("savedClass", obj);

        return "listrso/deleteSuccess";
    }

    @RequestMapping(method = RequestMethod.POST, value="updateRsoDetails")
    protected String onSubmit( @ModelAttribute("updateRso") ListRso rsoCommand,  ModelMap model ) throws Exception
    {
        model.clear();
        new  ListRsoDao().updateRso(rsoCommand);
        model.addAttribute("savedClass", rsoCommand);
        return "listrso/view";
    }

}

Java Bean

public class ListRso {

    private String rsoCode;
    private String rsoDescriprion;
    private String regionCode;
    private String regiondescription;

    public ListRso(String rsoCode, String rsoDescriprion, String regionCode,
            String regiondescription) {
        super();
        this.rsoCode = rsoCode;
        this.rsoDescriprion = rsoDescriprion;
        this.regionCode = regionCode;
        this.regiondescription = regiondescription;
    }

    public ListRso(String rsoCode)
    {
        this.rsoCode = rsoCode;
    }
    public ListRso() {
        // TODO Auto-generated constructor stub
    }
    public String getRsoCode() {
        return rsoCode;
    }
    public void setRsoCode(String rsoCode) {
        this.rsoCode = rsoCode;
    }
    public String getRsoDescriprion() {
        return rsoDescriprion;
    }
    public void setRsoDescriprion(String rsoDescriprion) {
        this.rsoDescriprion = rsoDescriprion;
    }
    public String getRegionCode() {
        return regionCode;
    }
    public void setRegionCode(String regionCode) {
        this.regionCode = regionCode;
    }
    public String getRegiondescription() {
        return regiondescription;
    }
    public void setRegiondescription(String regiondescription) {
        this.regiondescription = regiondescription;
    }


}

Answer 1

您的表单无法执行此操作会导致弹出标记为do weird stuff。这个：

<form:form action="" method="POST" commandName="updateRso">

表示您只需要执行此操作（删除值属性，输入从路径填充）

<table>
    <tr>
        <td style="font-weight: bold; font-variant: small-caps;">RSO Code:</td>
        <td><form:input path="rsoCode" disabled="disabled"/></td>

Answer 2

最近我遇到了类似的问题问题的根本原因是我定义了相同的路径变量两次，一个在屏幕上可见，另一个被隐藏。提交表单时，它用commqnd来表示具有相同路径/名称的值。要解决此问题，您已经删除了隐藏的内容。

希望此信息有帮助

Spring属性连接属性值后跟逗号

2 个答案: