json传递

action中

public String alter() throws UnsupportedEncodingException{

boolean bool=lexiconService.UpdFile(param);

if(bool){

inputStream =new ByteArrayInputStream("修改成功！！！！".getBytes("utf-8"));

}else{

inputStream =new ByteArrayInputStream("修改失败！！！！".getBytes("utf-8"));

}

return "Alter";

}

struts2中

<action name="······_*" class="··" method="{1}">

<result name="Alter" type="stream">

<param name="contentType">text/html</param>

<param name="inputName">inputStream</param>

</result>

</action>

jsp js中

function alterFilter() {

var contains=$("#···").val();

if($.trim(contains)==''){

alert("新的关键词不能为空！！！");

}else{

var r=confirm("是否修改关键字！！！");

if(r==true){

//window.location.href="classifyAction_addUI.action";

$.ajax({

type:"post",

url:"······_alter.action",

dataType:"text",

async: false,

data:$('#alterform').serialize(),

success:function (inputStream) {

if(inputStream=='修改成功！！！！'){

alert(inputStream);

window.location.href="classifyAction_listUI.action";

}else{

alert(inputStream+'请重试');

}

},

error:function(){

alert("失败");

return false;

}

});

}else{

······

}

}

}