如何调用webservice接口 ajax

Posted 2023-03-30

Java调用WebService可以直接使用Apache提供的axis.jar自己编写代码，或者利用Eclipse自动生成WebService Client代码，利用其中的Proxy类进行调用。理论上是一样的，只不过用Eclipse自动生成代码省事些。
1、编写代码方式：
package com.yudun.test;
import java.rmi.RemoteException;
import org.apache.axis.client.Call;
import org.apache.axis.client.Service;
import org.apache.axis.message.PrefixedQName;
import org.apache.axis.message.SOAPHeaderElement;
import com.cezanne.golden.user.Exception;
import com.cezanne.golden.user.UserManagerServiceProxy;
import javax.xml.namespace.QName;
import java.net.MalformedURLException;
import javax.xml.rpc.ServiceException;
import javax.xml.soap.Name;
import javax.xml.soap.SOAPException;

public class testWebService
public static String getResult() throws ServiceException, MalformedURLException, RemoteException, SOAPException

//标识Web Service的具体路径
String endpoint = "WebService服务地址";
// 创建 Service实例
Service service = new Service();
// 通过Service实例创建Call的实例
Call call = (Call) service.createCall();
//将Web Service的服务路径加入到call实例之中.
call.setTargetEndpointAddress( new java.net.URL(endpoint) );//为Call设置服务的位置
// 由于需要认证，故需要设置调用的SOAP头信息。
Name headerName = new PrefixedQName( new QName("发布的wsdl里的targetNamespace里的url", "string_itemName") );
org.apache.axis.message.SOAPHeaderElement header = new SOAPHeaderElement(headerName);
header.addTextNode( "blablabla" );
call.addHeader(header);

// SOAPHeaderElement soapHeaderElement = new SOAPHeaderElement("发布的wsdl里的targetNamespace里的url", "SoapHeader");
// soapHeaderElement.setNamespaceURI("发布的wsdl里的targetNamespace里的url");
// try
//
// soapHeaderElement.addChildElement("string_itemName").setValue("blablabla");
//
// catch (SOAPException e)
//
// e.printStackTrace();
//
// call.addHeader(soapHeaderElement);
//调用Web Service的方法
org.apache.axis.description.OperationDesc oper;
org.apache.axis.description.ParameterDesc param;
oper = new org.apache.axis.description.OperationDesc();
oper.setName("opName");
param = new org.apache.axis.description.ParameterDesc(new javax.xml.namespace.QName("", "arg0"), org.apache.axis.description.ParameterDesc.IN, new javax.xml.namespace.QName("http://www.w3.org/2001/XMLSchema", "string"), java.lang.String.class, false, false);
param.setOmittable(true);
oper.addParameter(param);
param = new org.apache.axis.description.ParameterDesc(new javax.xml.namespace.QName("", "arg1"), org.apache.axis.description.ParameterDesc.IN, new javax.xml.namespace.QName("http://www.w3.org/2001/XMLSchema", "string"), java.lang.String.class, false, false);
param.setOmittable(true);
oper.addParameter(param);
param = new org.apache.axis.description.ParameterDesc(new javax.xml.namespace.QName("", "arg2"), org.apache.axis.description.ParameterDesc.IN, new javax.xml.namespace.QName("http://www.w3.org/2001/XMLSchema", "string"), java.lang.String.class, false, false);
param.setOmittable(true);
oper.addParameter(param);
oper.setReturnType(new javax.xml.namespace.QName("http://www.w3.org/2001/XMLSchema", "string"));
oper.setReturnClass(java.lang.String.class);
oper.setReturnQName(new javax.xml.namespace.QName("", "return"));
oper.setStyle(org.apache.axis.constants.Style.WRAPPED);
oper.setUse(org.apache.axis.constants.Use.LITERAL);
oper.addFault(new org.apache.axis.description.FaultDesc(
new javax.xml.namespace.QName("发布的wsdl里的targetNamespace里的url", "Exception"),
"Exception",
new javax.xml.namespace.QName("发布的wsdl里的targetNamespace里的url", "Exception"),
true
));
call.setOperation( oper );
call.setOperationName(new javax.xml.namespace.QName("发布的wsdl里的targetNamespace里的url", "opName"));
//调用Web Service,传入参数
String res = ( String ) call.invoke( new Object[]("arg0","arg1"));
System.out.println("===============");
return res;

/**
* @param args
*/
public static void main(String[] args)
try
System.out.println(getResult());
catch (MalformedURLException e)
e.printStackTrace();
catch (RemoteException e)
e.printStackTrace();
catch (ServiceException e)
e.printStackTrace();
catch (SOAPException e)
e.printStackTrace();




2、利用Eclipse自动生成WebService client代码就容易多了：（由于还不会发图片，就用语言描述了，大家酬和看吧。。。）
首先，new project，选择other，在输入框中输入Web Service Client，选中搜索后的结果，点击Next，在Service definition中输入 WebService的发布地址，点击Finish
这样，WebService Client代码已经生成好了。
接下来写一个Test类，在main函数中输入如下代码：

String endpoint = "服务器的WebService的地址";
YourWebServiceNameProxy umsp = new YourWebServiceNameProxy (endpoint);
try
String resultStr = umsp.opMethod("arg0","arg1");
System.out.println(resultStr);
catch (Exception e)
System.out.println("异常");
e.printStackTrace();
catch (RemoteException e)
System.out.println("RemoteException异常");
e.printStackTrace();
参考技术A $.ajax(
    url: 'webservice/url',
    type: 'GET',
    data: params,
    dateType: 'json'
).done(function(result) 
    console.log('返回结果', result);
).fail(function() 
    console.log('请求挂掉了');
)

参考技术B jquery ajax调用webservice(C#)要注意的几个事项：
1、web.config里需要配置2个地方
<httpHandlers>
<remove verb="*" path="*.asmx"/>
<add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
</httpHandlers>
在<system.web></system.web>之间加入
<webServices>
<protocols>
<add name="HttpPost" />
<add name="HttpGet" />
</protocols>
</webServices>
2.正确地编写webserivce的代码

/// <summary>
/// UserValidate 的摘要说明
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
// 若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务，请取消对下行的注释。
[System.Web.Script.Services.ScriptService]
public class UserValidate : System.Web.Services.WebService

DFHon.Content.Common.rootPublic rp = new DFHon.Content.Common.rootPublic();
[WebMethod]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
public string ValidateUserLogState()

string result = "";
HttpCookie cookie = HttpContext.Current.Request.Cookies["DHFonMenberInfo"];
if (cookie != null)

string username = System.Web.HttpUtility.UrlDecode(cookie["MenberName"]);
int ipoint = 0;
int gpoint = 0;
try

DataTable dt = UserBll.ExecuteUserAllInfo(username);

if (dt.Rows.Count > 0)

ipoint = int.Parse(dt.Rows[0]["iPoint"].ToString());
gpoint = int.Parse(dt.Rows[0]["gPoint"].ToString());


catch

result = "'user':'id':'" + cookie["UserId"] + "','name':'" + username + "','message':'" + rp.getUserMsg(DFHon.Global.CurrentCookie.UserName) + "','ipoint':'" + ipoint.ToString() + "','gpoint':'" + gpoint.ToString() + "'";

else

result = "'user':'id':'0','name':'','message':'0','ipoint':'0','gpoint':'0'";

return result;


[WebMethod]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
public string UserLogin(string userName, string userPwd)

string returnVal = "";
try

GlobalUserInfo info;
DFHon.Content.UserLogin _UserLogin = new DFHon.Content.UserLogin();
EnumLoginState state = _UserLogin.PersonLogin(HttpUtility.UrlDecode(userName), userPwd, out info);
if (state == EnumLoginState.Succeed)

DFHon.Global.CurrentCookie.Set(info);
DFHon.API.PDO.DiscuzNT.PassportLogin.UserLogin(Server.UrlDecode(userName), userPwd, -1);
int ipoint = 0;
int gpoint = 0;
DataTable dt = UserBll.ExecuteUserAllInfo(userName);

if (dt.Rows.Count > 0)

ipoint = int.Parse(dt.Rows[0]["iPoint"].ToString());
gpoint = int.Parse(dt.Rows[0]["gPoint"].ToString());

returnVal = "'user':'id':'" + info.UserId.ToString() + "','name':'" + info.UserName + "','message':'" + rp.getUserMsg(userName) + "','ipoint':'" + ipoint.ToString() + "','gpoint':'" + gpoint.ToString() + "'";

else

int ids = 0;//状态：-2用户被锁定 -1用户名密码错误
switch (state)

case EnumLoginState.Err_Locked:
ids = -2;
break;
case EnumLoginState.Err_UserNameOrPwdError:
ids = -1;
break;
default:
break;

returnVal = "'user':'id':'" + ids + "','name':'','message':'0','ipoint':'0','gpoint':'0'";


catch

returnVal = "'user':'id':'0','name':'','message':'0','ipoint':'0','gpoint':'0'";

return returnVal;

[WebMethod]
public string UserLogout()

if (HttpContext.Current.Request.Cookies["DHFonMenberInfo"] != null)

HttpCookie cookie = new HttpCookie("DHFonMenberInfo");
cookie.Expires = System.DateTime.Now.AddDays(-1);
cookie.Domain = DFHon.Config.BaseConfig.getV("weblogin");
HttpContext.Current.Response.AppendCookie(cookie);

return "1";

DFHon.Content.user UserBll = new DFHon.Content.user();
[WebMethod]
public string ValidateUserEmail(string email)

string result = "0";//返回的结果 -2邮箱为空 -1邮箱格式不正确 0邮箱存在 1填写正确
if (string.IsNullOrEmpty(email))

result = "-2";//邮箱为空

else if (!IsValidEmail(email))

result = "-1";//邮箱格式不正确

else if (UserBll.sel_useremail(email) > 0)

result = "0";//邮箱存在

else

result = "1";//可以注册

return result;


[WebMethod]
public string ValidateUserName(string username)

string result = "0";//返回值：-1用户名长度为2-16;0用户名存在;1可以注册
if (username == "" || username == null || username.Length < 2 || username.Length > 16)

result = "-1";

else if (UserBll.sel_username(username) != 0)

result = "0";

else

result = "1";

return result;


public bool IsValidEmail(string strIn)
// Return true if strIn is in valid e-mail format.
return System.Text.RegularExpressions.Regex.IsMatch(strIn, @"^([\w-\.]+)@((\[[0-9]1,3\.[0-9]1,3\.[0-9]1,3\.)|(([\w-]+\.)+))([a-zA-Z]2,4|[0-9]1,3)(\]?)$");