在后台JAVA中对参数对应的转码：

java.net.URLDecoder.decode(request.getParameter("name"), "UTF-8");

把jquery.js 中的param中的

做一下encodeURIComponent就可以了

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param: function( a ) {
         var s = [];
         // If an array was passed in, assume that it is an array
         // of form elements
         if ( a.constructor == Array || a.jquery ){
             // Serialize the form elements
             jQuery.each( a, function(){
                 s.push( encodeURIComponent(this.name) + "=" + 
              encodeURIComponent(encodeURIComponent( this.value )));
             });
         // Otherwise, assume that it's an object of key/value pairs
         }else{
             // Serialize the key/values
             for ( var j in a ){
                 // If the value is an array then the key names need to be repeated
                 if ( a[j] && a[j].constructor == Array ){
                     jQuery.each( a[j], function(){
                         s.push( encodeURIComponent(j) + "=" + 
                       encodeURIComponent(encodeURIComponent( this )));
                     });
                 }else{
                     s.push( encodeURIComponent(j) + "=" + 
                               encodeURIComponent(
                                    encodeURIComponent( 
                                        jQuery.isFunction(a[j]) ? a[j]() : a[j] )) );
                  }
              }
         }
         // Return the resulting serialization
         return s.join("&").replace(/%20/g, "+");
     }

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