前台交互，根据id、关键字查询、插入新数据到数据库

    public void update() {

        Patent patent = patentservice.get(id);
        name=Iso2Utf.encode(name);
        author=Iso2Utf.encode(author);
        attachmentName=Iso2Utf.encode(attachmentName);
        company=Iso2Utf.encode(company);
        place=Iso2Utf.encode(place);
        remark=Iso2Utf.encode(remark);
        if (patent != null) {
            patent.setAuthor(author);
            patent.setAttachmentName(attachmentName);
            patent.setCompany(company);
            patent.setName(name);
            patent.setPlace(place);
            patent.setRemark(remark);

            patentservice.update(patent);
        }
    }

name=Iso2Utf.encode(name);

需要做转换，乱码

/**
     * 根据id获取专利详细信息
     */
    public String loadDataByid() {
        Patent patent = patentservice.get(id);

        Date date_date = patent.getDate();
        Date date_issueDate = patent.getIssueDate();
        String str_date_date = sd.format(date_date);
        String str_date_issueDate = sd1.format(date_issueDate);

        PatentVo pVo = new PatentVo();
        try {
            BeanUtils.copyProperties(pVo, patent);
        } catch (IllegalAccessException | InvocationTargetException e1) {
            e1.printStackTrace();
        }
        pVo.setDate(str_date_date);
        pVo.setIssueDate(str_date_issueDate);
        pVo.setDoctypeId(patent.getDoctype().getId());
        pVo.setDoctypeName(patent.getDoctype().getName());
        pVo.setUserId(patent.getUser().getId());
        pVo.setUserName(patent.getUser().getName());

        String jsonResult = JSONObject.fromObject(pVo).toString();
        try {
            response.getWriter().write(jsonResult);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

}
pVo.setDate(str_date_date);
pVo.setIssueDate(str_date_issueDate);
pVo.setDoctypeId(patent.getDoctype().getId());
pVo.setDoctypeName(patent.getDoctype().getName());
pVo.setUserId(patent.getUser().getId());
pVo.setUserName(patent.getUser().getName());

包含实体类的，放在Vo里

/**
     * 根据关键字获取专利详细信息
     */
    public String loadDataByKeyWord() {
        key = Iso2Utf.encode(key);
        List<Patent> patents = patentservice.getListByKeyWord(key);
        List<PatentVo> patentVos = new ArrayList<PatentVo>();
        for (Patent patent : patents) {
            PatentVo patentVo = new PatentVo();
            try {
                BeanUtils.copyProperties(patentVo, patent);
            } catch (Exception ex) {
                ex.printStackTrace();
            }
            patentVo.setDoctypeId(patent.getDoctype().getId());
            patentVo.setDoctypeName(patent.getDoctype().getName());
            patentVo.setDate(sd.format(patent.getDate()));
            patentVo.setIssueDate(sd1.format(patent.getIssueDate()));
            patentVos.add(patentVo);
        }
        String jsonResult = JSONArray.fromObject(patentVos).toString();
        try {
            response.getWriter().write(jsonResult);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

后台java代码，不允许setId

前台

ajax({
                    url : "appcanAjax/appPatent_loadDataByKeyWord?key=" + key,
                    data : {
                        pageNo : pageNo,
                        pageSize : pageSize
                    },
                    type : "get",
                    dataType : "json",
                    successx : function(data) {
                        if (data.length > 0) {
                            //遍历数据
                            for (var i = 0; i < data.length; i++) {
                                var list = {
                                    id : data[i].id,
                                    title : data[i].name,
                                    note : "发明人:" + data[i].author,
                                    describe : "授权号:" + data[i].number,
                                    icon : iconpath
                                }
                                listData.push(list);
                            }
                        } else {
                            $toast('暂无数据！', 2500);
                        }
                        if (pageNo > 1) {
                            lv.add(listData, 1)
                            if (listData.length == 0) {
                                $toast('没有更多记录了...', 2000);
                            }
                        } else {
                            lv.set(listData);
                        }
                    },
                    error : function(xhr, type) {
                        $toast("网络连接超时", 3500);
                    }
                });

ajax({
                    url : "appcanAjax/appPatent_update",
                    data : {
                        id : id,
                        name : name,
                        author : author,
                        company : company,
                        place : place,
                        attachmentName : attachmentName,
                        remark : remark
                    },
                    dataType : "json",
                    successx : function(data) {
                        $toast("保存成功", 1000);
                        setTimeout(function() {
                            location.reload()
                        }, '1000')
                    },
                    error : function(xhr, type) {
                        $toast("网络连接超时", 2000);
                    }
                });

传代数值的，先传id（id：id）